Whizbang Dustyboots
Gnometown Hero
I don't think they measure up, in most ways, to great fantasy wizards like Gandalf, Ged or Dumbledore, each of whom has power but also a well-rounded personality.Uhm... no one cited Vecna or Acererak or Fistandantilus.
Vecna and Acerak are both Eeeeevil as a personality, with the added wrinkle that Vecna is willing to have dudes with hands for heads serve as his lieutenants instead of Power Word: Killing them out of embarrassment. Fistandantalus is just a goofy facade put on by a dragon whose sophisticated sense of humor is "what if Gandalf, but an idiot?"