What I THINK would be MY personal knife setup is:
911 (When I get it)
Bulldog or Regulator
S5 or Wardog (I would probably go with the Wardog with this setup)
Mud Puppy, 311 or Swamp Warden (with a heavy leaning toward the Muppy)
Cupidvore/Scrapivore (the cupid is first cause I don't have a Scrapivore)
Or if you HAD to choose,
911
Bulldog
Wardog
Mud Puppy
Cupidvore or scrapivore, which ever one you have. And with the Muppy you could always drop the Cupid/Scrapivore.