Well, first of all, there is
no other tactical/utility knife quite like the Military
That being said, here's a number of random thoughts from my end on why the Millie rules and the competition less so:
- steel selection: you get more than 10 different steels to choose from (if we count former + current lineup), none of them something you can really go wrong with;
- liner lock: the Millie LL is my favourite locking system bar none (and has been so for some years now). It is light, has no moving parts, is easy to clean and performs well even in the most appalling conditions of dirt, mud, dust & abuse;
- G10: Spyderco has the best G10 in the business (if memory serves me right, they pay a premium for having their G10 customized with extra 30% fiber glass);
- ergos: designed in the dark, form follow function, you know the drill
From what I've used myself, the other production folder that stands a chance against the Millie might be the Benchmade 710 -
here's a little comparison I've done on the 2 some ages ago