need help with farming

i'm new to gw's and i was wondering where do u farm? witch is easy since my gear kinda sucks, right now i just kill charr around where u get the ashes quest, and i get crap drops, also whats the best build for a w/m too farm with.

First, to farm as a w/mo, you should be level 20.
After that, just use search and there are numerous threads on farming with a w/mo.