I play at odd hours because of work, and i can confirm that my server has players from all over on it. We have europeans, we have americans(ok, obviously), and i know we have a contingent of aussie and new zeelanders. My advice would be to find a mid-population american server and make a character there to play with for a few hours. If the latency is acceptable(and since the NA servers are all in the same location there shouldnt be a huge difference from one to another) you can give it a go. If the latency is too much, then watch the creation restrictions. They update that post every 5ish hours, though the servers update in real time. So while the post at 8am might say blocked with another update 5 hours away, its entirely possible that at 11am itll open up and let you make your character. While waiting you could make a character on one of the preferred worlds and try to get up to the level where they give you 15 days of free time.