I find polygon man's combination of weird voice and cheap dialogue particularily annoying. He's probably my #1.
The squeaky sound that Parappa makes when he does the splits in his intro and outro makes my dog bark, so he would probably say Parappa.
i'm going to say toro for a very specific reason. When doing the combat trials, no one has screwed me over more than a computer controller toro. All of his attacks have extreme knockback so any level 1 or level 2 mastery challenges are a pain solely because of him. Just as you activate your super he uses an oni move that knocks everyone away but himself
I can't even stand his voice anymore.
My Cloud Strife Moveset:
My Alundra Moveset: