I've been doing some reading and I have my opinions but nothing beats hearing from several folks with first hand experience.

Also I realize that there are exceptions to every rule. I'm sure somewhere there is a nice Cooks Tree Boa and somewhere else a nasty corn snake but I'm looking for generalities.

Thanks.

Oh yeah, my guesses based on what I've read: Size would be Peruvian and Surinam. Between the two the temperment can be anywhere from great to nasty with a slight edge to the suri. However, I'd be more likely to get a hardy speciman if I went with the Peruvian. Am I close?