I think they both suck/rock.
Honestly, my highest scores have been on the EU servers and my ping is an average of 214 there.
I am not the best player out there, but there is something extremely wrong with me having a 14 kill 0 death archery record at the end of a match with 214 ping on EU, or alternatively going into NA siege on melee and being in the top five with nothing but attacks and feints (Now that I was taught how to properly use them with foot work) and no blocks.
EU can not dodge range to save their lives on average, and NA has a severe probem when it comes to blocking (If I kill you in melee 5 times in a best of 9 match, something is suspect... I am only good with the pike, if I pull out my No Dachi and still clean your clock, you should be VERY insulted)... Speaking of which... did I mention that I suck, and yet kill people one on one in NA when I use my pike? yes it can stab, but it can also feint into an overhead... If I can overhead block the painfully slow overhead attack animation on a pike, then so should you... especially if I just did it twice already on your skull moments before.
I should now mention the "Can_You_Down_Block" "CanYouBlockDown_PGI" character on NA that somehow manages to get K/D ratios of 4 or higher? And yes, she ONLY uses down attacks...
I dunno... I think both servers have an equal ratio of good and bad players, though I dare say the EU displays better large-scale clan tactics some days, but the NA pulls ahead with better squad-level tactics for clans.
Australia has the most skilled players for some reason. You go there and it seems to be 80% BKS quality on the peaks.
I just find it fascinating that the class preferences for EU and NA differ so radically. I still wonder why NA has a massive throwing spam and EU has a massive bow spam.
Also a few weird things, like EU having for the most part rubbish Tin Cans while NA has a few that are deadly (Like when BKS_Rhade goes into plate? Scary), and conversely NA has a large percentage of Cav that are infatuated with the moronic tactic of focusing on one infantry man with constant circles that get them stabbed, while EU cav seem to be more intelligent...
I dunno... Where is the "Neither" vote option?
I want a cookie.
EDIT: I do think though that the NA servers win the award for "Highest number of egotistical players," they do have more of those then EU, certainly.