#1 The Wyatts take on the Beast
Brock Lesnar is a creature unlike anyone else in WWE, so it makes sense that the company would save him for their very top stars. In early 2016, that star seemed to be Bray Wyatt, as the company teased a feud between the two in the run-up to WrestleMania 32.
It was Bray, along with the rest of the Wyatt Family, who prevented the Beast from reclaiming the WWE World Championship at the 2016 Royal Rumble, as it seemed a match between the two was destined to happen.
Another segment on RAW saw Wyatt hit Sister Abigail on Lesnar, and the feud could have been really interesting, pitting Lesnar's stoicism against Wyatt's mysticism. Sadly, fans will never get to see an angle between the two former Champions.
The angle was just dropped without warning after Lesnar defeated Luke Harper on a WWE Network special. Dean Ambrose later moved into a feud with Brock that would see them face off in the WrestleMania match, and though this match could have been entertaining, given it's No Holds Barred stipulation, it was instead a dud.