For me, it was always the psionicists, Psion, Wilder, Psychic Warrior.
But, above all, I think the Warblade's victory was an easy one. Effective, simple to run, cool, it's the class with no enemies. And while I did not vote for them, Scout and Rogue are great. The Tier 1 spellcasters however, suffer somewhat, they're effective, but so few actually fall in love with the class instead of what it does.