The SOG gears system puts it top of my list as it'll chop through 3 times tougher stuff (in my experience) than my leatherman or victorinox. And the replacable blades add versatility and longevity.
Another advantage is the one handed opening blades on the power assist. Lock knives are illegal in the UK. If you have a good reason to carry one you'll get away with a multi-tool.

qjs