The Hybrid Warrior in PoF
Rifle/Longbow could also be interesting for an all ranged Hybrid option, I could see that working really well in small groups. Definitely going to have to try that, might have to have two weapon sets on that character.
I was toying with the idea of a hybrid hammer user. Take the Strength line and Peak performance with some of the Physical skills that interrupt. Tack on a draining sigil to the hammer with merciless and body blow.
Arms should work good with this as well.