#2 Hulk Hogan (2,185 days)
The Real American. The hero. Arguably the single biggest name in the history of pro wrestling. Hulk Hogan holds many accolades, but one of the things that defined him more than any other tidbit is his history with the WWE Championship.
With six tenures as champion spanning across this magnificent total, it's no wonder that people say Hulkamania reignited the world of 'sports entertainment' as we know it today.
In terms of average length, the Hulkster is nothing if not consistent, with 364 days being the usual duration of his Championship runs. Even though his last triumph in 2002 wasn't nearly as long as some of his others, this still averages out to a year per reign, which is quite simply a phenomenal achievement when you consider just how long the guy has been in the business.
We finish off with quite simply - the greatest.