If Christian does win the strap it will always be looked at as a pity run, kind of like when Rey won the title @ WM22 because of Eddie. Granted not exactly the same but I still think if Edge had not retired he wouldn't be in a main event match right now, that's by no means a knock on him. I'm a huge Christian fan and I would have no issues with him winning the title, and by all means if he is given the ball he should run with it. But I still think Del Rio is going over at Extreme Rules, it's always a lot easier to establish a face as a championship contender after losing rather than a heel imo.