For all those saying L2P Rogues are fine, well no they are not. Look at top rated PvP'ers who were Rogues last expansion and before. They are switching, either to Warriors or Ferals mostly. If you are owning on a Rogue it's most likely because the people you are playing against are absolutely terrible or you are being helped massively. Rogues are in such a awful spot right now for PvP, our damage outside our CD's is absolutely shocking compared to other classes. Our damage with all of our CD's is good but without which is a lot time for Rogues since our CD's are on a high CD, we suck.
Before MoP, I quit WoW for a year so you can't say I played when we were owning everything last tier. I quit when the Firelands nerf hit. I was happy with Rogues then with our PvP setup, we were in a good place, not excessively strong like we were last tier but not ridiculously weak and useless like we are now. We do one thing, deal damage so our damage should at least be good, im not saying OP/all specs #1 but at least compete at the top. Also placing an energy cost on things like dismantle, high CDs and most importantly removal of Prep has hurt us HARD...removed our mobility and control big time. Pretty much if we don't kill when we pop our CD's then we gotta wait another 3 minutes for our CD's to return for us to attempt that again.