@Brawd
There are a lot of reviews of each Othell in the right section of the forum.
Something quickly:
GH: Best rear Damage and Shadow Evasion (debuff immune). PVP: IMHO, the best for pvp. Debuff immune and the best for 1shot ppl. PVE: Not so good DPS, you need to be in the back of mobs, not so easy if you are alone and mobs are immune to stun.
WR: Best DPS. they have 1 blow more than FS or GH. You can built a setup full stun. PVP: good to disable a target, full stun and very good CD (maybe usless in party sitations). PVE: High DPS and full stun. Good for solo exp in party zones.
FS: Useful only in PVE. PVP: very low damage, IMHO useless in pvp. PVE: they have a 30% PVE Damage passive skill and you can do good damage in all directions. The thing is farm with spoil to get better profit. I didnt test this patch with a FS but seems like they was nerfed... so, maybe isnt a good idea.
Feryl.