Revolvers have two advantages over autoloaders: they don't jam, and they can shoot shot loads for the snakes the OP mentioned. Not light, but I like the Ruger Single Ten and the Super Blackhawk.
Generally speaking yes, revolvers are a reliable option, but when they do jam it's catastrophic. Ever had a bullet move forward out of it's case and protrude out the front of the cylinder? It locks the gun up. Can't turn the cylinder, can't pull the hammer, can't pull the trigger, and most times can't open the cylinder. I think every type of pistol has it's kryptonite, and each has it's pros and cons. I do like that a revolver will fire if pressed against an animal. I've carried both, but almost always end up with a Glock20.
