Edge
Edge has two major plusses that will ensure his viability for the next five years: youth, and the fact that he is a home-grown talent. The WWE just loves pushing talents that they have created. Plus the fact that he is still in his mid-twenties and that is a huge advantage for the former four-time Intercontinental and eight-time tag team champion.
Edge has the in-ring ability to put on blockbuster matches in the ring for years to come. He is able to work fast pace matches that keep the crowd entertained, and as he games more experience, he is also improving his ability to talk on the mic and come off well on TV. Edge also has a photogenic look that is very important in any business that focuses on TV programming.
One thing that may hurt Edge is his lack of political influence backstage, but due to his young age, that could still come with time. Edge has shown a strong desire to constantly improve his game and do what is asked of him, and that will keep him in good standing with the booking team as well as do only positives for his on-air performances.
Edge may also need to bulk up his skinny frame in order to add longevity to his career and be able to take more bumps. Shawn Michaels had his career cut short, partly because his small body simply was not built to take all the bumps he took. Hopefully Edge does not fall victim to a similar fate.