#4 Shawn Michaels/DX
Like Reigns, Michaels has also had a few different feuds with 'the Chairman'. One involved Triple H and DX opposing both Shane and Vince McMahon. DX was doing their usual mockery of the McMahons and it led to the Spirit Squad getting involved at one point.
The main feud that I remember is when Mr. McMahon was directly battling with Michaels. As they attacked each other and ran each other down during the episodes of RAW, things culminated with a No Holds Barred match at WrestleMania 22 in 2006.
'The Heartbreak Kid' won the match, but another No Holds Barred match was booked for the next PPV after 'Mania, Backlash. Michaels had returned to the WWE a few years prior, claiming that he had changed his ways and found religion.
Mr. McMahon mocked him and his new-found religion by booking the match with 'God' as Michaels' partner against both Shane and Vince McMahon. Since 'God' didn't appear, it turned into a handicapped match, won by the McMahons. 'The Chairman' will use almost any angle to make money and this feud was proof of that.