I´m lvl 50 with 23 valor, I´m taking the tank set for pvp, because usually I go with a healer. Do you think that in my situation the set of tank is the best option? Sorry for my poor english.

Sorry, with my poor English i hadn´t understood.

6k AoE!!!, are you sure it was a guardian?. Sorry, but i can´t belive it. Guardian have 2 AoE, one with poor damage, and the other AoE is Foce Sweep (15 sec cd), with FS maybe can do 2-3k crit, but never 6K. To many Defensive stuffz?. Mmm... 2 guards (10 and 12 sec) with 3 min cd. Anyone who says this class need a nerf is playing class that need a nerf.

even if you change the tree, guardian dps is ridiculous compared to other classes.

Guardian dps is ridiculous. 3 abilities with 3 min's cooldown, o my good!!!. Is stupid that people demand to nerf JKs. Vanguard and Shadow have more damage and can tank perfectly. Maybe this is because they have a Trooper / BH or Sage/Sorcerer, classes than need to be nerfed. Jks (Guardian and Sentinel) dps should be increased. Sorry for my poor English