what do you cut out of other instruments for vocals?

They really don't sound too bad to me. They may be a ouch over-saturated (...and i'm a distortion freak with vocals). I think the problem lies more in the mix, They sound like they are sitting on top of the guitars. Maybe take a little top off the guitars or ad some low mids, and turn 'em up a bit.
 
Thanks, I just wasn't sure if they were processed differently from regular screams. I'll post up clip soon :)