Random Encounter in NYC
I say Midnighter.
Quicksilver can give him problems though, he was whooping Spider-man's ass when they met.
But I think his battle computer is the key factor here. Quicksilver has been easily outmaneuvered, this is how Spider-Man ended up defeating him (clotheslining him) and Angel did also (turning at the last second making Quicksilver run into a wall)