I think my SAK is my survival knife - if it doesn't live in your pocket, then it is something you have to plan to take. With the UKs draconian knife laws (don't get me started!) this is the most PC carry choice, the one least like to raise an eyebrow. And the good collection of tools often mean I am using something designed for the job (saw, can opener, awl etc) instead of using single bladed lock knife as a improvised substitute.

BUT - when I do carry something larger, it is a sturdy chopper of a blade - because top priority in an emergency is shelter and fire. And for both of those, chopping, splitting etc. is no.1 job.

So for me it is an SAK followed by a chopper. If I carried a third knife it would be a Mora for light work or food prep.