Gerber MP400 is my always at hand
Been with me for about 15 years. Even sent it back when I had an issue with one of the tools.
They fixed it promptly and returned.
I think the nylon sheath sucks, so I crafted a leather one
Letterman Blast. Great combination of tools! Many multi tools don't have the wood saw, metal saw, or sizzors. Carry it and use it multi-times a day. Bought half dozen on eBay that were stolen at airports. At the time only about $45 each. Very hard stainless steel. Use diamond sharpening stones to keep the knife sharp. Start with course, stepdown a grit at a time all the way to extra fine. That gives a much longer lasting edge.
I carried a leatherman skeletool for a few years, but recently it got replaced with a buck hunter 110 (in my profile pic) since 9 times out of 10 I only used the leatherman as a knife. I miss the ability to open one handed, but it's handy.