#3 Barcelona - Coutinho, Suarez and Messi
Admittedly, any trident containing Lionel Messi will inevitably make this list. The Argentine is at the heart of almost every attacking move at Barcelona and, with Luis Suarez and Philippe Coutinho, he has a magnificent 'supporting cast'.
With more playing time, these three will only continue to develop a better understanding and get even better than they already are. Only three of the other 19 teams in La Liga have scored more league goals than Messi and Suarez this season.
Coutinho, who only joined the team in January, was also involved in 12 goals in 17 league. Originally it appeared as if Ousmane Dembele was primed to replace Neymar in Barcelona's attacking trio, but it appears as if the Frenchman's injury problems may have cost him.
The three South Americans have a great chemistry and with Coutinho finally available for selection in next season's Champions League, the Catalans will once again enter the competition as one of the favourites.
It's hard to see how any team can stop these three once they hit their stride. However, because of their limited time together, they aren't at the top of the pile just yet.