Thats probbaly from lots of questing etc... though? I assume so anyways?
tbh, I do generally just tend to end up PVP'ing a lot in Warzones, and right now at 12-16k a loss and 24k a win, its taking a long time to even hit 43!
But welcome any advice, been out of the loop a while!!
Ah yea from questing... you wont level up that quickly from just PvP - the bonus would help on that; but depends how you play. I couldnt stand PvPing that much