I use Black widows and they are very comfortable to me, but everybodys different so it comes down to the small things..Grey Ghosts are great along with sun pros ,killer bees and even jolly rogers, they are all good headphones...
Its best if you can get to try a few on for yourself and see the differences..
I like my DectorPro, UniProbe combo headphones/pinpointer set...good sound, very deep pinpointer, pulse induction, so no descrim., pricy, but great range of depth!