If the option went from Concealed to Open carry (as we know it's one or the other), would you opt for open carry? Or would you still prefer CCW? And of course why?
What a good question! Depends on the situation.
It isn't "one or the other" everywhere. There are states that allow the individual the choice. Some states you can do both at once.

Personally, I prefer Open Carry with the right to CC if I chose. I don't care if the BG knows I have a firearm. Most criminals aren't stupid, they study the scene and a guy with a gun on his hip is either 1. Offduty LEO 2. Law abiding citizen who will use it when it comes down to it.
I HOPE he/she sees it and goes elsewhere to commit whatever crime he was planning. It may backfire, but less of a chance.
As far as the comment about getting hassled or harassed by the police with OC. How about arrested at gun point, cuffs on, gun/ammo confiscated etc for abiding the law? All it takes is a MWAG call and an LEO(S) unfamiliar with the law to get you into a situation you don't want to be in.
You have to be ready for that when it comes down to it, along with the strange looks you will get daily. I doubt the local population here is ready for that...even in the states that have had OC for a long time, there are issues with LEO applying the laws incorrectly.