#4 Roman Reigns
The man WWE has been pushing as the face of the product is a part of the list simply because we have seen this match too many times. This match has been on many PPV cards. The first time we saw these two take a shot at each other was when Roman Reigns won the 2015 Royal Rumble to face Lesnar at WrestleMania for the WWE Title. This match was however hijacked by Seth Rollins when he cashed in his MITB briefcase to win the Title.
Since then, Lesnar and Reigns have faced off in either singles competition or a multi-man match for the WWE/Universal Title in PPVs six times. Their last match was at SummerSlam 2018, where Reigns finally got the best of Lesnar to win the Universal Championship.
The former Shield member has already won a Royal Rumble and is a favorite to win this year's match as well. While WWE is still in the race to get Reigns over, him eliminating Lesnar and potentially setting a match against these familiar foes wouldn't be the right direction to head in.