Where in Washington?  There are, as some have pointed out, many factors that may determine "the best".  Some that I recommend for ownership that haven't been mentioned yet are: fit and feel.  Does it fit in your hands?  Can you operate the functions properly without adjusting your grip significantly?  Have you had the opportunity to feel those that fit well under firing conditions?  How did the recoil impulse feel compared to others you may have tried?  Have you  fired many at all?  Have you handled many at all?  THere are ranges in Washington that allow you to rent and "test drive" guns to help you decide which one(s) you may eventually want to buy.  I do NOT recommend any manufacturers marketing hype.  Let your hands help you decide what fits and feels best....those are the ones you will more naturally shoot better without having to "train into" it.  Grip to slide angle for instance.  Glocks are popular, but they are not comfortable for me as that angle is too acute.  My hands prefer the angle and girth of SiGs and so that is what I own.  Not knocking Glock or HK or S&W or any other manufacturers, but SiG is what works best for me.  Also in calibers, I have not been personally impressed with .40S&W.  It is harder to find and more expensive than 9mm or even .357SIG, IMO.  Reloading wise, I can use some of the same materials to reload both (147gr JHP's).

If you haven't, I would suggest you go to Cabelas or somewhere similar to get your hands of a variety of guns.  Some are heavier, some have smaller grip girth, some are longer than you thought they were and so on.  If/when you have an opportunity, shoot some of them and do your own "test drive" analysis.  Then determine your budget restraints and either save up for the one you want or keep a look out for a good deal on that make and model at a gun show or via some reputable online vendors.  Deals can be had.

I think at least some of it lies in the apparent immaturity of some of the citizen/residents.  Based on my experience growing up in Mililani, my returns during and after military service and visits back recently....there is some credence to "mokie boy" acting up, quick fuse and all which would and should be a red flag for issue concerns.  However, I do think that with prudent disqualifier restrictions written into the statute (should there ever be one one day) things like criminal record(s), domestic violence convictions, illegal drug use, mental institution commitment and so on would weed out those not deserving of a CHP/CHL being issued.

Still won't stop the gang bangers from having and using theirs but even with the recent case involving the State Department Agent (I forget the name), "mokie boy" acted up and was taken out of the gene pool.  Sure there was fault on both parties and in the circumstances leading up to it in the end, but hot blooded/hot headed stupidity, road rage over something stupid in traffic or even something as relatively innocuous as looking at somebody in what is perceived as "the wrong way" could result in shooting incident.  I am NOT saying that law abiding level headed citizens shouldn't be afforded the option of being able to provide their own safety, far from it.  It's just that having left the islands and having my horizons broadened I can see a general lack of maturity in folks that would raise concerns in anyone with an objective mind.  NOT the majority to be sure, but prevalent enough.

It still won't increase the probability that I will ever move back to Hawaii but ridding the islands of such stupidity in the laws on the books might be just one step in the right direction towards Constitutional Law prevailing in the Libtard Utopia that Hawaii currently is.  I still support the cause when and how I can (Amazon) but I don't hold my breath either.

The only MOS's that get any kind of "retention" training is Law Enforcement (MP's, SP's) at a basic level.  Sure some of the more elite units do too but by and large the rank and file military personnel are only taught which end is the "pointy" one and the very basics of how to use it.  They will see it monthly for cleaning or for training exercises and qualify once or twice a year.  There is NO effort within any branch or sections of the Military, in general, that stress secure/ retention training be it static or simulated duress with the exception of Law Enforcement....and I cannot attest to the specifics nor the quality or detail of such training (wasn't my MOS).  Though I may be wrong as I got out after the Gulf War....there really isn't too much that I have seen and heard to change my generalized assesment especially with regards to handguns.  There MAY be more put into training with rifles but I don't know this for certain.

Basic Military Marksmanship Training is generally limited to basic functions, disassembly, cleaning and target engagement.  Granted, infantry and line units will have additional training on tactics and so on, but the majority of the rank and file are logistical element MOS's and as stated, do NOT generally get any additional training prior to being assigned sentry duty.

http://www.targetbarn.com/patching-tape.php

TargetBarn is where some of the local ranges stock supplies for use.  Lots of stuff at decent prices too, though I'm not sure what the offset would be shipping to the islands.

AWESOME news for some folks 

Loaded mags and one round chambered in my SD/HD guns....they are just bricks or paperweights otherwise.....

So far I'm pretty lost on choosing a barrel. Most say Novesky is great but they have so many that I don't know what to pick. No idea what a no gas, lo-pro gas, switchblock, lightweight contour, etc. is.

I went with a Daniel Defense 16" Lightweight barrel (referred to by most as a "pencil" profile barrel) for mine. https://danieldefense.com/cold-hammer-forged-barrels/16-inch-chf-barrels/16-5-56mm-1-7-lw-profile.html

I also chose the YMG Match LITE BCG https://www.rainierarms.com/?page=shop/detail&product_id=1010

I've had NO cycling problems ever and am using a standard "H" buffer though I have an "H2" as a spare.  Lightweight or Pencil barrels just don't have the extra bulk that "standard" or military profile barrels do.  If you look at a standard barrel you will see it is thicker from the muzzle end to just in front of where the FSP or gas block would be mounted, then there is a thinner section and then it goes back to the thicker diameter before approaching the increasing taper diameter at the chamber end.  In a Pencil barrel that extra material is milled off giving the barrel a smoother appearance from muzzle to chamber end.....milling off that extra material reduces the overall weight of the barrel while not compromising its abilities.  It will heat up a little faster but that shouldn't be a problem for your intended purposes....you aren't going to be engaged in a prolonged firefight with rapid cycling.....or.....nevermind 

This is absolute garbage. They have cell phone jammers. What happens when someone uses a device to block the signal from your watch to your gun?

Ummmm, cel phone jammers are illegal....duh.  (sacastic comment directed at legislators for their misguided and off-base belief that criminals obey the laws....)

Tribal lands (reservations) are under the jurisdiction of the Tribal Council (which determine the laws for themselves), any crimes on their property is their domain.  Tribal members committing crimes off reservation are subject to state and/or federal penalties.  However, there are no "reservations" or specifically delineated "tribal lands" in the state of Hawaii....so unless THAT happens and there is a "Tribal Council" with authoritative jurisdiction....No.  On the mainland for instance, fireworks aren't always available ....except on reservation where you can buy anything you want.  Tobacco sales are without the federal taxes added on, same as gas purchases.  If the (whatever tribe/nation) Tribal Council says everyone can own a Barrett .50, then it can happen, they just have to work out the logistics of getting them onto the reservation with the state patrol and attorney general......with the stipulation that (if not legal within the state) that they can only be owned and used on reservation property with no sale to non-residents (likely mandated by the AG).

Finally I have never heard time a state or federal officer was asked to remove their fire arm inside of a post office. 

Tolerance level of the Post Master at each location I guess.  There were 2 in Colorado when I lived there that stated emphatically, NOBODY armed on premises.  There have been posts on some of the other gun forums that echo similar experiences from LEO's in different localities across the country.  I plan my errands and end up NOT carrying for trips to the Post Office.  Though I feel uncomfortable not carrying concealed, I cannot risk my security clearance nor employment on Federal charges regardless of how stupid some of the rules may be.  State issued CHL has NO merit on Federal property....commuting to and from work "naked" stinks too.  There are more and more incidents of active shooting incidents on Federal property and the "duck and cower" position that is advocated just does NOT sit well with me.