In order to get the rankings, I created a point system that would give a clear description of why the wrestlers are ranked the way that they are. Also note that I considered main event matches and title matches separately, but if a wrestler was in a main event that was also a title match, they got points for both—the only case where a wrestler gets points in two categories at once.
Fight in WM = 2 pts. This is the participation award since it is difficult for a wrestler to make it. By having a regular non-title match, but not winning it, they get 2 pts.
Win in WM = 5 pts. This is simple enough: You win your non-title match, you get 5 pts.
Fight in MITB = 5 pts. Since there could be multiple wrestlers in the MITB match, a wrestler gets 5 pts for participation.
Win in MITB = 15 pts. With how difficult it is to win the MITB, the wrestler who does win gets a nice bump in points by getting 15.
Fight in european/tag/cruiserweight/hardcore title match = 5 pts (title level 1)
Win in tag/cruiserweight/hardcore title match = 10 pts
Fight in IC/US/ECW title match = 10 pts (title level 2)
Win in IC/US/ECW title match = 15 pts
Fight in world title match =15 pts
Win in world title match = 20 pts
Fight in main event = 20 pts. The biggest honor a wrestler can have bestowed upon them is being able to wrestle in the main event of the biggest show of the year.
Win in main event = 25pts. The biggest accomplishment a wrestler can have at Wrestlemania, only to be topped if it's also a title match, or the wrestler somehow finds a way to break the Undertaker's streak.
Fights ending in a no contest or draw are counted as a win for both competitors.
Fights ending in double DQ or countout count as a loss for both competitors.