[trekking95]

As a hero I would pick Thor.

Pros: His strength, his power, Mjolnir, the ability to go to other planets.
Cons: Having an evil step-brother who you would have a hard time fighting against since you still think of him as a brother.

As a villain I would pick Magneto.

Pros: The ability to control anything metal and therefore stop almost any attacks. Bullets, missiles, grenades, people made out of or that have metal on them. Also the ability to fly and create magnetic shields.
Cons: Harder time using the powers when weak.


Now that I think of it, a battle between Thor and Magneto would be cool.
There likely is one in the comics but I have not read that one yet.