Who is the best villan and why?

Onslaught is the best villian that has ever graced the X-Men scene. For starters, his secret identity is Charlies Xavier. This allows him to get the better of the X-Men, as he knows all about them. Second of all, he is able to absorb the abilities of the mutants he enslaves. This makes him nearly indestructable. Thirdly, it all The X-Men, the Fantastic Four and the Avengers to finally bring him down. If there was any justice in the world, he would have been allowed to live, or star in his own comic with Doomsday from Superman and Bane from Batman. Let's hope he shows up soon in Ultimate X-Men, as it will be the best story line-ever. Plus, I can't wait to see him in movie form when they show the Onslaught saga.

Onslaught sounds cool but I like Magneto. Grey hair, muscle everywhere and a really cool cape(sp) lol And movie Magneto, the charm 😉
He's my fave 🙂

Apocalypse is the best villain ever

On the poll i picked Eric. It's strange how the Heros can do what they want to the villans. I like his charm.
I like the Shadow King

I would say Onslaught...

I wud have to go with Galactus. He can take out a whole planet. Man nobody is gonna mess with him. Well maybe the Dark Phoenix. but my vote goes to good ol Galactus.