Ye, its better getting into pvp right now, compared to late MoP. PvP gear is quickly gathered. If you participate in a random battleground you sometimes get a pvp item (which is most times not as good as those you can buy tho, but its nice if you need an item on that slot). PvE gear gets upgraded to 650, low pvp gear for honor is 660/675 only and the better gear for conquest points is 680+ I think, I didnt do much arena yet so Im not entirely sure about that point. I prefer battlegrounds.
And they removed some CC skills, so its more fun imo.