I currently have a level 20 warrior/monk, and as the title says, I'm just starting to play again. How do warriors fare in PvP? If they're bad, what is strong right now? What kind of gear should I be using?
If you are Ascended go to the Great Temple of Balthazar and talk to the profession changer. Once you have bought each profession once (500g each) It will be unlocked and you can freely switch between them whenever.
PvP characters automatically can switch between professions. Press K and look at the top to change it.