Planetside 2

you know steam has this right? Clicky.
and yes there are just as many Europeans on as Americans. I play on the main European Server which is normally always near full (2000 players).

Yes. It's very active. I dunno where the main lot of players are from, but there is 1 or 2 European servers, and the servers cope with 100's of people and whenever I've played, they have a reasonable amount of players online.

(last time I played it, there wasn't many European servers, but that might have changed. But then again, they don't need loads as the servers are incredible. There isn't many servers for the whole of America either, but there is always a decent number of people on the ones that are up.)