OK, this is easy for me. Stinky Pete is my #1, followed by Syndrome, then Darla and finally Zurg. Sometimes it's hard to choose but this order was really easy for me for some reason!
A few other notes on some of the characters.
Is it just me or does his face look a little funky? maybe it's just the angle, but it looks like his nose is broken and that he has a sunken eye. Not my favorite - at least from this look.
I wish that there was sone kind of extra feet (or something like that) on Mr. Waternoose. I think it would look really cool to have some extras on there to widen his stance a bit.
Also, I have a hard time...and so does Julie...with Dean Hardscrabble being included in the villains set. Sure, she was hard-nosed and set in her ways, but she wasn't a villain and even came around at the end to respect Mike and Sulley! I was even talking with Giovanni (forum user Muschmugada) about this as well and he expressed the same sentiment based on a separate conversation. Julie's initial reaction was, "oh no, not Hardscrabble!" I can't disagree with that! That being said, I do appreciate that her head is raised (as it should be) higher than the rest!
Oh, and Giovanni had some great thoughts on the chaser, but I won't ruin his fun in case he wants to post it here - it's a great thought on a missing movie from the bunch! That being said, we're hoping it's Sid from Toy Story...the original Pixar villain!