Shameless RaF link I ended up landing on Shadowlands, playing Empire side. 60 pvp seems to pop pretty well (regs anyway, haven't tried ranked yet since I re-rolled and haven't gotten full expertise yet). The few times I queued up for a FP, it popped pretty quickly and I haven't tried ops yet, but I see groups forming on fleet a lot as well. Starter planets are pretty full and with 12x xp going, now is the time to jump in! Click the link for 7 days free time and sub on up to take full advantage of the xp boost!
RaF Link: http://www.swtor.com/r/ZMcsRG (Thank you!)
Catina Code : http://www.swtor.com/user/ce/h6npz (free mount and random bonus)