CRONO RULES!
He never says a word, even when the time is critical. He's not saying stupid things that way. And he rocks! Confuse and Luminaire and the most destructive spells plus his Rainbow Sword has a 70% chance to do a critical hit.
Give him a Nova Armor, Haste Helm and a Berserker and he's able to kill Lavos all alone at level 80!