I carry a Gerber medium sized multi-tool all the time. I've carried some sort of knife evry day since I was in elementary school. Used to carry either Case stockman's knife, or a small Gerber lockblade, but the multitool has them beat for my purposes.
My hunter is a Green River medium butcher for heavy use, and a Green River ripper for all other uses. Green River blades are inexpensive, they hold an edge better than any stainless blade I have ever used, and they have a full tang. Very tough to beat.