I used to play her alot in PvP, especially in HA where I played a pretty nice dmgover-build.
I pretty much like playing warrior because if i do so i can lead the group and let them play like i want.
In randomarenas I did a pretty good job too. At first with the pretty standard pr axe build and later on I switched and stuck to cripslash, which is in my opinion one of the best ra elite skills. Ive also played hammerwarrior ofcouse. Although it was and still is pretty effective I didnt stick to it because it was boring.
In PvE, playing warrior is pretty boring. First of all u have to know that playing with sword and axe is pretty much not effective at all. Playing with Hammer makes u a decent groupsupporter because knockdowned foes wont deal dmg ;) I used to play a warrior with a build based on warriors endurance and a scythe. Nice dmg and with SY still nice groupsupport.
I havent played my warrior for a while because playing randomarenas with a meele is pretty frustrating because of the massive meelehate u have to face there and playing HA is impossible too because all my friends dont play gw anymore :,(