Currently for the vast majority of mmorpg players, there is no choice other than TMnet Streamyx as they have the widest coverage.

Maxis may eventually supercede them but their current broadband is chopped at a measly 3Gb/month (hell, I can use up that allocation in 2 days) and coverage isnt as wide as TMNet.

So for most of us, its either Streamyx or find something else to do with your time.