I think it's going to AJ and I am pretty damn happy about it because I NEVER thought I'd see the day. I have been following AJ for 13 years and he has always been one of my favorites. For me this is a huge deal because if AJ wins the WWE Championship, he will become only the third person in wrestling history to hold both the NWA World Heavyweight Championship and the WWWF/WWF/WWE World Heavyweight Championship. The ONLY two guys who have ever done this are Ric Flair and Buddy Rogers, and I think that is some impressive company to be in. These are now the two longest still active major titles in the United States. I know it's not quite the accomplishment of Flair and Rogers, since the NWA council voted for them to be champs and Jeff Jarrett pretty much solely decided AJ would be the NWA champion... but its still a major deal in my eyes.
And then AJ can also say he is the ONLY person to ever hold the NWA World Heavyweight Championship, the TNA World Heavyweight Championship and the WWE World Heavyweight Championship... could even throw the IWGP in there if I wanted.
I know to most of you this might not matter. I mean, in a sport with predetermined champions, it might seem silly to some to laud such things. But growing up when I did, this sort of thing was a huge deal and the nostalgic part of me still says it is one.