It's a boring answer but I really like PF's take on Sorcerers. I always preferred Sorcerers to Wizards in concept, anyway. A Sorcerer's force of will makes reality bend over backwards. Wizards just learn the cheat codes from old scrolls. Plus, the Charisma means a Sorcerer can really, really ham it up to eleven and get away with it.
EDIT : Aaaand I crit failed on reading the OP. So to answer properly, I like the Alchemist. Because Vivisectionists going full on multi-armed backstabbing monstrosity are badass.