Not the one with the most tools — the one that lives in the van door and gets used weekly. Half the blades on the "better" multitool I own have never once been opened, and I've owned it for three years.
Pliers, a half-decent knife, and a bit opener that doesn't chew up screws. That's genuinely the whole list of things I use, and it's a short enough list that I can name every one of them from memory rather than needing to unfold the thing to check.
The pliers head is the part that gets the most actual work: pulling a stuck zip free, gripping something too hot to hold directly, bending a bit of wire back into shape. None of that needs to be glamorous, it just needs to work every single time without the joint feeling loose.
The knife blade holds an edge better than I expected for something bundled into a multitool rather than sold as a standalone blade — I've resharpened it exactly once in three years, mostly out of habit rather than actual need.
What I've learned from owning both a minimal one and an overloaded one is that the tools you'll actually use in the field are rarely the ones that sounded impressive in the shop. Fewer, better-made components beat a long spec list every time it's actually raining and you need something to just work.