#1 Triple H

In many occasions, Batista openly spoke about his intentions about returning to the WWE and having a match against Triple H.
Even the WWE had plans for Batista at WrestleMania 34 where he would have teamed up with Ronda Rousey to take on Triple H and Stephanie McMahon in a mixed tag team match. However, the idea was nixed and the match happened, but instead of Batista, Kurt joined Rousey.
Batista is approaching 50 years of age, and now, he can't wrestle for a long time, and it would be better if the WWE plans a retirement match between Batista and Triple H for WrestleMania 35.
Triple H is good in surprising the WWE Universe and at SmackDown 1000, he could do the same by attacking The Animal.
This will set up a rivalry between Batista and The Game which will last until WrestleMania 35.