In the military, I carried a Randall or a K-Bar, just cause. Also carried an original Leatherman and a SAK too. Same belt pouch. The belt pouch was everyday wear, the big knives for field use only.
Now I tend to a 5" Gerber, a Leatherman wave and for extreme conditions, a Woodsman Pal. I really need to get either a folding saw or chain saw, but Santa may provide.
I can think of times where I said I was glad to have a sharp knife, but never really wanted a bigger knife that what was on hand.