3. SHIELD
They'd be number one had they just not reunited. SHIELD has become synonymous with the current generation of WWE. This is a powerhouse team with each one of the men holding world championships and more between them.
Sure cynics can say the reunion is in place to get Roman Reigns over, but even then SHIELD is an intriguing unit. Their attack on Braun Strowman presents a wild angle if WWE is willing to double down. There's no doubt Braun might have the support of Lashley and Finn Balor; two men who've had their tangles with the group and Roman.
Meanwhile, Drew McIntyre and Dolph Ziggler lurk somewhere alongside the constable Baron Corbin. The reunion of the super faction in this climate provides tons of options. Among them is the idea of loyalty permeating across the three brothers until a potential explosive Ambrose heel turn.
A suggestion is WWE going all in on the three men and having them square off at Wrestlemania 35 to punctuate this era in the company.