That's not really a character suggestion as a "look, I managed to get full purples" which is kinda common.Going as far as buying the trading cards for the tabard is a bit extreme too.
My rogue (probably in PVE gear but depends what I last logged out in...) http://eu.wowarmory.com/character-sheet.xml?r=Twilight's+Hammer&n=Kitteh
1347 2v2 with that gear on cyclone. Hmm.
none of my mates play it anymore, no one to give the account too lol...
Get rid of the "ring of goulish delight" And the boomstick.
Your gear isn't really that good based on the current Arena season 3.
Considering PVE is completely pointless in wow now, you may as well camp area and get season 2, which is far better then the gear you have.
Also your marksman spec, that's about high attack power, so remove +8 stam from chest and get stats.
Your also not hit capped, which needs to be around 6%.