Add another guess that duskblade, scout, and warlock make the final three.
I'm saddened by all the hate thrown at the psion. IMHO, it is simply the best designed spellcasting class in far superior spellcasting system to the standard. The fact that it is called psion/psionics rather than magic, I suspect, is the reason for its persecution, not the fact that people actually have seen one in play and didn't like it.
So fess up...how many of you psion-haters have actually tried one or seen one in play? If it were called sorcerer and the psionics system were the default magic system, would that change your mind?