Well, I'm a simpleton, but anything that isn't all that hard to raise, and anything that doesn't just croke, because I look at it wrong. 
Mearnes...yes, I could see that going on around here. I'm not up to that challenge just yet, but who knows what the future holds?
What I don't want to raise...Anything that can disembowel me with a single kick.  Sorry, all birds that weigh 100+ pounds each. I shy away from any animal that can kick/stomp my light weight butt into the ground. I never want to be kicked in the face by any "LARGE" animal!