Oh for pete's sake, hasn't anyone got this yet..? If it's not Swansea then It's Rayo Vallecano
Ruiner!
For anybody interested in this type of thing, Southampton lead the stats in the BPL and are currently 7th in Europe with an average of 58.5% per game.
Trivia question, who can name the other 6 without looking them up? One of them is particularly rogue!

And Swansea are 58.1% in second place, but when it comes to pass accuracy your no where to be found?
Pass Accuracy
Arsenal 85.8%
Man City 85.7%
Swansea 85.4%
Liverpool 84.2%
Simple answer: we employ a bit of a wrinkle on possession football that seems to have been imported from Marcelo Bielsa...quick-strike vertical passes to the flanks, particularly after dispossessing opponents, to catch teams when their defenses have pushed up the pitch. Consequently we have the second highest total of long balls played, and a lower percentage overall because they're speculative plays with a high payoff when completed. Well, when we have Jay Rodriguez, at least; haven't found anyone capable of exploiting the space quite as well.

And Swansea are 58.1% in second place, but when it comes to pass accuracy your no where to be found?