You sound like you haven't played the game for years Now in BGs and Arena PvE gear ilvl is scaled down to 496, with a 1 ilvl increase every week, capping at 512 ilvl. Which is what any high lvl PvE piece sits at right now.
On topic, I agree Ret is frustrating especially in 2s. But you did more damage than the Warrior? You shoulda won that game then Are you using the weapon chain instead of Dancing Steel? You really want the chain in 2s.
Also try going with 2 PvP DPS trinkets against melee + healer teams, Proc will happen 1-3 spells when you start, you stack the on-use one with it. You'd need to rely more on CC dispels from your healer, plus maybe using the bubble as a trinket if it would score a kill. That way sometimes your damage will be so high they might die stuck in a global CD n not popping defensives. Had games where I crit fully geared people for 100k+ hammers, not counting Hand of Light.
Nothing of me is original. I am the combined effort of everybody I've ever known.
Boring with a terrible tools set.