Re: Off-beat villain choice: Taskmaster!
Ultimate Spider-Man is a perfect example of how you can execute and make Taskmaster cool.
He's basically an ultimate strategist. He can read your fighting style and movements just from observing you for a few seconds and break it down and mimic it himself. Besides that, what makes him interesting is that he sort of has his own code of honor. He won't kill innocents and he would betray the bad guys if it was in his best interest.
Basically it would be cool if Cap or Falcon or somebody had to fight a guy who could read all their movements and can totally out think and out strategize them. You basically have to beat Taskmaster by abandoning strategy or doing the exact opposite of what you normally would.