i wouls say the hfs aswell, opeth don't have any custom 22s. and im pretty sure at least one or 2 of their guitars or peters old guitars still had the hfs/vintage bass pickups in them.
otherwise you could get a cu24 and put seymor duncans in it.
im saving for a cu24 at the momment, after playing a cu22 and a cu24 the 24 sounded so much better, the dragon2 pups are really weak and thin in comparison, not good for metal at all i thought