Moderate would be good. I really think that the current parties are due for a reorganization at this point, just because of how schizoid they are. Really - just give the Tea Party its own mascot, let the moderates keep the donkey, maybe the 'Blue Dogs' could start their own party as well, and we'll just have a four way.
Yes, I went there. Isn't politics all about who's getting screwed? (j/k)