For me, a combination of a SAK saw (for small tasks) and a pocket "chain saw" (for slightly less small tasks) is the way to go. Both Wenger and Victorinox saws do the job well, but I can only vouch for Ultimate Survival's Sabercut in the chain saw department: I have one and it's very well built. Seems like adding more teeth would significantly increase gripping. Note: ditch the included sheath - the whole thing fits in a cellphone pouch.