Roman Reigns from 2013-16 ish is my pick here. HHH 99-04 is certainly on this list somewhere too. Roman's push was different though, unlike anything I have witnessed as a wrestling fan. He was getting a Hulk Hogan push with a Rocky Miavia reaction.
Not saying they shouldn't have tried with Roman. Of course you push Roman Reigns, look at him. But in those first few years after the Shield, they pushed Reigns so hard, and did such a poor job of it, that a majority of fans resented him. People actively turned on that character to the point of it regularly hurting the product. It took him revealing his serious, life-threatening illness to reverse the damage of that first run and get fans on his side. That's the craziest overpush I can remember.
HHH crushing everyone from 1999-2004 was also terrible, and also chased fans away from wrestling. I think those are the top 2, at least that I've seen.