I really like to pack my sp101 in 357, I dont worry too much about 2 legged varmints, but its accurate and nice to shoot for a snubby 357.
again the smith, blackhawk or the gp100 are good choices, even the vaqero is nice if you like fixed sites, i love mine.
The problem with the 327 is ammo availability, at least around here, they dont have much and it seems to go fast when they do have it. I havent shot one yet, but i have a 32mag and its very nice to shoot and would do fine on a coyote im thinking as long as you dont push its limits.
Good luck
Dave