Shoot both and see what you are the most comfortable with.
-There are plenty of holster options for both revolvers and semi-autos.
-A semi-auto has the ability to carry more rounds
-A revolver, for the most part, is more simple to operate
-Something in .357,.44mag, 10mm, or .45acp should do the trick for any 4-legged or 2-legged predators where you are up there in NorCal
If you were down south I'd let you try my Ruger GP100 and G21SF. :-D
NRA, CGF, GSSF, SAF member
Certified Glock Armorer 2011
"Praise be to the LORD my Rock, who trains my hands for war, my fingers for battle. -Psalm 144:1