I can't believe you guys got rid of the spellthief so early. You guys suck. I hate you all.
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I decided to vote for the Soulborn again, simply because "Incarnum is dumb, the name of the class sucks, and I hate it." really, who needs anything more complex.
I'd also like to get rid of the Scout, because I've found it to be just a little overpowering in my games, but I have the feeling he'll be one of the last classes standing.
Personally, I think the Beguiler will be the last one standing... I dunno why. Just a feeling.