I like how everyone says to buy them all, cause I agree. Do it. But for serious, it sounds like the Blackhawk would be fine for hunting. DA is fun, but I'd think even with DA you'd still practice so you could hit the target with the first shot. DA might be nice if the deer shot back, though.
Also, recently bought a Blackhawk, .357 Magnum, 6.5" barrel. Love it.