maybe the most popular among Mainlanders, but to get a normal latency you may have to pay 47rmb/month(called a VIP Account)
I used this when I was in Mainland(Shanghai), worked well
never tested this, but I heard a variety of comments on this one, some guys told me this is great, and the others just kept complaining its latency.
I'm using it now(I live now in Europe and play in TW), seems pretty ok, and IIRC I never heard someone complained about it.
Oh, BTW, you can purchase this one with your VISA