My topic so I get first vote.
Top personality = Korgan: He's undeniably evil
Most practical = Har 'Dalis?: Thats right folks, he may seem completely crap at first but believe me he ain't. Count 'em, 3 possible proficiency points in duel wielding, 2 in short swords (Cut-throat +4, Backstabing +3) AND spelcasting abilities!!!
Now then we throw in Stoneskin, Tensers transformation and offesive spin = The thinking mans tank!
Of course you could just stand in the back lines as well if you wished and throw fireballs and lightning bolts with Edwin or Aerie, Mr Flexibility can do it all!