I may join a PVE focused guild when my Mesmer reaches level 30 or is ready to do instances. For now however, I'm going solo, representing our family guild of alts. My Guardian is still in the monster sized guild she started in, which for me, is a bit too impersonal. Consequently, I'm often doing my own thing on her too. It would be the perfect guild if you're primary focus is WvW but I haven't ventured into that much.