1: The New Day
Since moving to SmackDown in mid-2017, The New Day has become one of the brand's most dependable acts, winning the tag-team titles three times and establishing the division as one of the most exciting in the WWE.
The group's popularity as a tag-team is unparalleled on the current WWE roster and their in-ring performances have continued to get better and better with each passing match.
Their program with The Usos throughout 2017 was one of the WWE's hottest tag-team feuds in recent memory, and their matches against the likes of The Bludgeon Brothers and The Bar in recent months have really helped boost the division following months of poor booking.
While there has been a lot of talk of breaking the group up, their current run as tag-team champions is shaping up to be one of their best yet, and the WWE would be unwise to pull the plug on a break-up anytime soon.