#3 Seth Rollins in a feud with Brock Lesnar

In what could possibly ascend Seth Rollins to the top of the mountain in WWE, a grudge feud with Brock Lesnar could bring some serious television on Monday Night Raw.
With Dean Ambrose turning heel, bringing the Beast Incarnate to clash with The Architect for a feud could be best for business.
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Both the competitors share an amazing chemistry between the ropes and could bring the best out of each other whilst telling a beautiful story inside the squared circle.
There is animosity between the two, with the Architect shocking The world by cashing-in his MITB contract at WrestleMania 31; Brock Lesnar has also never pinned Seth Rollins.
Therefore, booking this feud and bringing it to life could catapult Seth Rollins as the biggest babyface in the entire WWE and make him a more compelling asset to the business.