#7 WWE - The OC
AJ Styles is one of my favorite wrestlers of all time and he's managed to avoid the perilous booking of several former TNA/Impact stars like Eric Young, EC3 and Samoa Joe. While Joe has at least a US Championship reign on his resume, he is traditionally used as a stepping stone for others. He's come up short in all of his bids for major titles and his first-round loss to Cedric Alexander in the King of the Ring tournament saw him put over the younger Alexander.
The Phenomenal One had been one of the longer-reigning Champs in modern history and was the focal point of SmackDown before the Superstar Shake-Up. He moved to RAW after WrestleMania 35 and immediately produced a great match with Seth Rollins over the Universal Championship.
Gallows and Anderson had been treading water for the last year, but once they resigned with WWE and realigned with Styles, things started to pick up. They feuded with Ricochet which led to Styles picking up the US Championship.
The team of Gallows and Anderson did win the RAW Tag Team titles in a triple threat contest in late July, but they've already lost them to Rollins and Braun Strowman. I'd have ranked them higher if Gallows and Anderson were treated as more of a threat, but they haven't been.