6. Shawn Michaels
The Heartbreak Kid, Shawn Michaels is one of the finest legends of his generation. Michaels has done everything there is to accomplish: winning World Titles, joining factions, and he has faced the Undertaker twice, yet, he lost both of those encounters. Therefore, why not give Mr WrestleMania a third chance? Yes, he is retired and he is working on other projects. However, Undertaker's best matches have been against Shawn Michaels, and there's no doubt in my mind that if Michaels returns, it would still be an outstanding performance by both the Phenom and the Heartbreak Kid. If the WWE allows it, we could see another show stealer with Shawn and 'Taker. Both of them are talented, and are excellent on the mic too. It would be fitting to have Undertaker's last match with Michaels. Shawn Michaels vs Undertaker has always given us fantastic bouts. But this time, if it happens at WrestleMania 30, it could be the best bout of all time.