Re: What would sound best?
for a derek tone in that guitar i think seths or antiquitys would work well. the carvins are brighter guitars, thick maple top and ebony board which will blend well with the warm toned seth. derek is almost always on the neck pup and sets his amps very bright (treble on 9 on his super) and uses the tone controls quite a bit. youll have to play around with settings to get close to what he does, especially if you use a pick since he never does.
warren uses pearly gates, antiquitys and burstbuckers (not pros). i might shy away from the pg in your carvin if its a bright guitar.