It seems you want all from 1 class.
Farming require different build than raiding and different from pvp ( instant spells).
You must be over geared to farm with pvp build.
You're right AOEs are better in PVP builds and killing mobs with these "PVP builds" is hard but my biggest problem with the summoner is the blood drops they disperse really quick and i cant kill mobs as fast as i want. Also i think that wardens can be mixed betewwn PVP and PVE. Anyway i will try the warden then i will update you.