right now my archer is level twenty and i haven't put any points into avian scream because i'm more concerned with running around cruel blasting everything. anyway what i'm wondering is this, with 5 ranks how is the damage component of avian scream? does it do enough damage to be worth using in pvp?

i am also wondering how skill damage scales. do your skills scale with weapon damage? if so do they scale with the normalized dps or do they scale with the weapon damage regardless of speed (like a warrior using a slow 2hander in wow)?

also, i have seen it argued that straight dex gives you the most dps. but i am wondering, since strength increases base damage, why doesn't having some strength also go towards dps. i would think that having some strength would allow you to do greater burst damage from a blast shot which would be nice in pvp. can someone explain to me why this is wrong?