It's 20 minutes...what's the truth?
Summarize please.
I don't have patience to watch endless YouTube videos so I'll give you my summary:
From a Cowboy Shooter's perspective, the original toggle links (1860 Henry/ Winchester 1866/ 1873) are the best, the Marlin 94 is good, and 1892's (either original Winchester or Rossi clone) are okay. Anything else is bleh.
From a hunter's perspective, the toggle link guns are a bit weak and quite heavy. The Marlin is best if you want a scope, since it can mount a scope in a traditional location. Everything else I know of is pretty good as long as you're only looking to cap a deer.
45 Colt is a close competitor to 44 Magnum in carbines. You can load either to about the same ballistics. 44-40 is probably better than either for quick feeding and preventing blowback to the face on light loads, but has limited commercial support. (If you're shooting volume in any of these calibers, I hope you're reloading.)