7. Kevin Nash
A big man with a big ego, Big Daddy Cool Kevin Nash has always displayed a huge sense of self; whether it was as Diesel in the WWF, or Big Sexy Kevin Nash in WCW, the giant star consistently acted as if he was bigger than the WWF or WCW. As Diesel, Nash reigned from November 26th 1994 until a loss to Bret Hart on November 19th 1995. His run was a dominant show of power and strength, but unfortunately for Nash this didn't translate all too well into ratings or pay per view buys. Nevertheless, Nash was continually booked to squash people and he rarely put anyone over. It was perhaps this dominant reign as champion that soldified Nash's ego, and the fact that the big man would now never allow himself to be booked in any other way than dominant. In Nash's mind he was the best thing in wrestling. Such was Nash's ego that he decided to leave the WWF in 1996, even though his best friend Shawn Michaels was WWF Champion and their clique was pretty much able to run the show. Vince McMahon was so bowled over by Nash's ego that he would often take business and creative pointers from the big man, and the result of course was that Nash and Michaels would use their influence to enhance their own career and bury other talent they disliked. Despite this power base, Nash jumped to WCW in 1996 after Eric Bischoff handed Big Sexy a $1.2 million a year for three years. Faced with that fee, Nash didn't hesitate despite tales to the contrary of wanting to stay with Vince. Money talks. A further display of his ego came upon his WWF exit, thinking he was bigger than the business and backstage code of conduct, Nash along with HBK, HHH, and Scott Hall all broke character in the ring at Madison Square Garden. The heels and faces who were meant to hate each other hugged it out after the main event. Vince McMahon was furious. It was however in WCW that Kevin Nash's ego really caught fire: as part of the NWO, Nash was a full on star, but upon getting the creative control power of being WCW's booker in October 1998, he would now look to extend his star beyond its natural drawing power. It was a bizarre choice to allow a wrestler to book the show he starred on, as it seems obvious that the wrestler would look firstly at protecting and enhancing himself. Unsurprisingly, that is exactly what Nash did, with no real care for anything or anybody else, including unthinkably booking himself to become WCW world champion as the man who ended Goldberg's undefeated streak. Incredibly, his ego was so big that he thought himself worthy and big enough to be the man to kill the best thing that WCW ever did. Goldberg never recovered, and WCW was dead in a matter of years.