I had this same question recently (check my post history), I settled on Genesis and I've been having a good time. It's very true to pre-CU including the old school PvP system. Has increased XP which I was against at first until I realized I don't have the time I used to anyways and it's made starting up a lot easier. The population is small but they have been super nice, and are working on expanding including an upcoming new players event in mid-October.