Lightfall
Legend
I have just finished gearing my Ret, took me around 70 ids to get everything i wanted.
Atm i am running with 12 +6str gems because there are not enough versatility / pvp power ones on the auction house.
My 3 dmg proc items already doing ~13% of my dmg but they only scale with versatility imho.
Will run some bgs with full pvp power and versatility over the next days to make comparisons.
https://worldofwarcraft.com/en-gb/character/stormscale/Myperfection
(Can't enchant shoulders / legs properly because this is my only char on this account)
pvp power affects damage procs also, after switching to it I started getting 1100+ sul'thraze procs
(to clarify, versatility scaling shows on the tooltip itself, but in practice, pvp power affects them in situations where pvp power would also)