We all know of characters that never seem to be beaten. They may even be your favorites but you still think they could use to be humbled.
So, what comics character do you want to be beaten, and who do you want to beat them?
Mine would be Batman by Nightwing. Bats' my favorite character, but come on, people, he needs to be beaten. Me and my brother where talking about this and here's how we want to see it happen: Batman under an extreme circumstance steps over the line (it needs to be done right, and Bats needs to stay in character), and Nightwing wont let it happen. A fight commences and after a good fight Nightwing barely pulls off a win.
EDIT: So, I've been informed that Bats' been beaten way more then I thought in the new 52, so just ignore the above paragraph. :P
I would still like Grayson to become an A-list character, though. Maybe he could lay out one of Batman's big villains instead...