No matter how great punk is but he just don't look believable to hang with Brock. I'd rather pay for Brock VS Ryback . The reason it would look more believable, competitive and It will help Ryback establish.
Punk and Bryan are my favorite wrestlers but I still believe they are not main event guys. Remember how great Dean malinko and Eddie Guerrero were? They were not main event guys but they were still my favorite. These days people seem to think that every wrestler that comes to WWE should be champion for once..A main event guy should always look strong like Brock, Rock or batista or at least Bret Hart (he was still believable)..I am with Vince here