#3. The Rock

Okay, if you're the WWE the biggest match you could probably book in this day and age is 'The Beast Incarnate' Brock Lesnar Vs 'The Great One' Dwayne 'The Rock' Johnson for the Universal Title at WrestleMania.
Incredibly at one point this was rumored to be something the WWE were hoping to do for this year's WrestleMania and if they were able to make it happen it would 100% be a bigger, more interesting match than Lesnar Vs. Rollins.
How Brock Lesnar ruined another wrestler's career - Watch Now!
It also sort of makes sense storyline-wise too as you can play on The Rocks relationship with longtime Lesnar nemesis Roman Reigns to build towards the match, and the big payoff at 'Mania could involve Reigns in some way.