4. Vince McMahon
Such is the ego of Vince McMahon that he went as far to book himself in a wrestling match against God in 2006. Vince won. He has also booked himself to win the WWF title, booked people he dislikes to literally kiss his backside, and also put himself in various angles with young and attractive women. But it not just creative selfishness that has demonstrated the ego of McMahon: his corporate dealings have also given an indication of an inflated self image. He legitimately views himself not as a wrestling promoter, but as an entertainment mogul - in Vince's head he is like Walt Disney, a creative visionary who is in charge of a family entertainment empire, and there is no limit to what he can do. This has led to several business dealings failing due to an over confidence and vanity, such as the World Bodybuilding Federation and XFL football league. McMahon believed in his own ability so much, that he really thought he could take on the NFL. In personal relationships, Vince is also guilty of allowing his ego to get involved. He has admitted to cheating on wife Linda several times, and also shown a disregard for friends such as Bret Hart, who he lied to the face of and "screwed" in 1997. When it comes to Vince McMahon, it is all fair game - this is his world and everyone else is just a part of it.