What is the best skid steer to buy used?

Opinions will vary on this one. Personally, I'd opt for either Caterpillar or Case. I tend to avoid Volvo.. too many bad experiences with both their trucks and their equipment.. and I hate Bobcat. JOHN DEERe's skids are a little hit-or-miss for me. Their use of a proprietary key (instead of the standard John Deere key) annoys me somewhat.