3. Sheamus
The great white is one of the goofiest characters in the WWE at present. The Celtic Warrior, Sheamus always had the tendency to irritate the fans - especially the internet wrestling community - with his actions and his mannerisms. However, he is one of the future faces of the WWE, and has never faced the Undertaker...ever. Sheamus is a former WWE Champ, World Champ and US Champion, and has all the tools required to be a successful star in the WWE. He can perform well in high-pressure situations, and is always ready to go out and give the audience a good match. Sheamus is a brutal machine, and dishes out punishment with the greatest of ease. Sheamus is going to be a big star in this business, and what better way to make a star, other than facing the Undertaker in his last match? Undertaker is a phenomenal athlete, even at this age, and him and Sheamus would make a good contest. Whether Sheamus ends the Streak or no isn't important: what's important is the fact that Sheamus will be Undertaker's last opponent, which is wonderful.