User blog comment:JoePlay/The Avengers Battle Royale - The Cage Fight/@comment-4416729-20120428085917/@comment-4652104-20120429075614

The reason is, these people aren't newbies relying on their powers alone. It's a close call between the Witch and the Hulks, so it comes down to experience. That's why the Hulk, who's been in this business for a hell of a long time beats Scarlet Witch (who never was rely a solitary superhero, always worked on a team), who in turn beats Red Hulk, who is relatively new to the tights business.

The real problem is that the power levels of most of these people vary wildly from comic book to comic book.