#4 The Undertaker vs Batista
Possibly the greatest Superstar in WrestleMania history, The Undertaker won the Royal Rumble match for the very first time in 2007, after eliminating Shawn Michaels in his hometown.
On an episode of Monday Night Raw, He came face to face with three champions: WWE Champion John Cena, World Heavyweight Champion Batista, and ECW World Heavyweight Champion Bobby Lashley.
The Undertaker chose Batista and thus kicked off one of the greatest babyface rivalries of this century.
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The duo had a classic at WrestleMania 23, with The Undertaker securing the World Heavyweight Title. Their rematch at Backlash 2007, as well as on SmackDown, ended in a draw.
The Undertaker and Batista met again, months later at Cyber Sunday, where Batista defeated The Deadman with the aid of two Batista Bombs. The next month, he managed to put down The Phenom again, after a returning Edge interfered and cost The Undertaker the World Title.
The rivalry was not only well received, but it also gave the WWE Universe a bunch of classic encounters between two of the most popular Superstars on SmackDown at the time.