I've spoken with Geist (Azog) a few times about PVP kits and how good it is and while i had some time this lunch time i added up the stats for two of the sets.. The purple PVP set for shaman, as well as the Purple PVE set of my preference from the server itself. I found it quite interesting in the set of results...
PVP Warlords Shaman kit..
Passive Shock chance Crit up 2%
+40 attack power…
Melee Crit strike by 2%
DMG and healing done up to 76
Ghost wolf speed up 15%
EarthShaker PVE Shaman Kit
Passive: Increases damage done by Fire spells and effects by up to 14.
Increases damage done by Nature spells and effects by up to 48.
Increases damage done by Frost spells and effects by up to 41.
Increases healing done by spells and effects by up to 66.
Increases the amount healed to targets beyond the first by 10%.
Improves your chance to get a critical strike with Nature spells by 2%
The PVP set is all about stamina... Thats an awful lot more stamina, crazy amounts infact. ~1730hp!. on 6 bits of kit..
The interesting thing is there is no resistances on this kit though, i thikn thats Very deliberate, why well for one the pvp kit isn't going to do you that much good in the highest level instances. No restitances means you are going to suffer badly again any type of magic driven attacks. Sure you may have some extra hp to stick with it, but given the choice imo at least, the PVE kit is a fair bit better.
The other reasoning for me is the complete lack of spirit... No spirit means no recovery of mana, with 200 spr i'm recovering 57 mana a second naturally. That may not seem great but its a shock every 5 seconds pretty much.. at 450 points of dmg..
Anyway thought i'd post to let you have a look what you think..