CM Punk is still the champion as the WWE and the rest of the world marches further into 2012, and while he is embroiled in a feud with Chris Jericho, there are plenty of "what ifs" that linger around him.
Pro wrestling fans are always booking fantasy feuds and matches that haven't happened yet or that could only have occurred if time travel became a possibility. With the option of a Delorean Express not available, some of Punk's most interesting options are thrown out the door. Others are still competing today in pro wrestling and could happen, though.
Some of these men have even faced Punk and different points in his career, but not at the same level he is at now.
No matter when they wrestled, it would be interesting to see each man on this list match wits with CM Punk and see how they stack up.