#4 Finn Balor vs Brock Lesnar
While Finn Balor has not exactly been pushed to the moon since returning from injury, there is no doubting he is an excellent wrestler. He also has a large fan following and never gets booed. Meaning that if he went up against Brock, fans would surely cheer for Balor as the underdog and boo Lesnar as the monster heel.
Getting fans to actually cheer faces and boo heels in WWE is becoming less and less common. But if Finn used his injury story as a way to gain sympathy and referenced his size and how nobody gave him a chance, people will get behind him even more and want him to beat "The Beast Incarnate".
Balor also missed last year’s WrestleMania which is something he could draw on in the build-up to facing Lesnar. We have also never seen Lesnar vs Balor meaning we would actually be getting a first time match in the main event of Mania.