#1 Aleister Black - 32 wins
For someone who still hasn't been involved in a singles title feud in WWE since moving up from NXT, Aleister Black has had a dream run in the last one year. His only televised singles loss this year is still that match against AJ Styles on RAW, one he lost after beating the likes of Karl Anderson and Luke Gallows in separate matches on the same night.
The Dutch Destroyer has managed to impress Paul Heyman who seems to be high on him and many members of the WWE Universe see him as the possible face of the company in the future. Black landed a huge victory against Bobby Lashley at WrestleMania 36 and it's only a matter of time before we see him in the World title scene.
The Dutch Destroyer currently has his hands full dealing with the Monday Night Messiah Seth Rollins and his disciples Murphy and Austin Theory. If you can recall, Murphy consistently losing to Black was what forced him into joining hands with Rollins in the first place. In any case, you can expect Aleister Black to be involved in some form or the other during WWE Backlash.