WWE Knights: DX
The Knight in chess is a piece that moves in a very unusual way. It can hop over other pieces, and can use its unorthodox style to threaten pieces in a vast variety of ways.
In many ways, this is the same as DX. Triple H and Shawn Michaels acted much like heels, but were so entertaining they wound up getting a lot of cheers. Many underestimate the horse headed knight chess piece, but it is full of surprises, just like Degeneration X and their 'invasions' of WCW events.
WCW Knights: Harlem Heat
On WCW's side, we find that Harlem Heat makes a great set of Knights.
Big and imposing, but capable of moving with a cat-like grace, the Harlem Heat put their opponents off balance with their surprising technical prowess. That sounds like the unorthodox offense of the knights in chess.
The duo were arguably the most successful tag team in WCW history, racking up nine World Tag Team championships during their run with the company.