The I Quit match, when done properly, has to be one of the best matches ever created.
I think it would be perfect to get the belt off of Daniel Bryan in a way that could send his character over the edge into full blown heel mode, instead of the heel because he'll do anything to keep his belt he is right now.
The storytelling with this match can be incredible. Two guys with a ton of pride who don't want to admit the other guy got the best of them... but one of them has to no matter what. It can create a lot of intrigue leading up to the match, and provide storyline fodder for after the encounter, and this is where it becomes a great match for Bryan's current character.
The guy who will do absolutely anything to keep the belt, is put into a position where he has to verbally relinquish that belt by saying he quits. What does that do to his character? What is the aftermath for Daniel Bryan? I think it pushes him over the edge and turns him into a deranged heel that starts taking out his anger on whomever crosses his path, while trying to plot to regain his championship.
I'd love to see that. It would have to main event a PPV, and it would have to mean that Sheamus doesn't win at WM... but it can be set up by having Bryan get himself intentionally DQ'd at WM, and Sheamus getting a rematch at the next PPV in an I Quit, where he goes over.
Some might not feel that's fair to Sheamus because he doesn't win at WM, but I think they could do tremendous business that way.