Great post!
Severtech is by far the most bang for the buck. Most people will never need that much "bang" from a folder though.
Next up, the Microtech Terzuola ATCF D/A. Hands down. More expensive, not as big, but large and very refined at the same time. The penultimate gentleman's (level III under tuxedo) tactical auto. The penultimate knuckledragger's tactical auto.
Benchmade/Microtech/Dalton... side-opening productions are pretty much 6 of one, half dozen the other. Some will take great offense to that. But we're talking excellent fit and finish on an aluminum handled auto with a 1/8" thick blade. The only difference is the design. Even the prices are similar.
So buy the design that best fits your needs.
Oh yeah, the OX Forge Black knife, another excellent auto. Arguably the most directly related to the auto that started the whole "tactical" auto genre (as opposed to the pearl handled "switchblade"). Very fine choice. Get the partially serrated blade, better for emergency use.
Dalton/Microtech OTF... again, from my experience 6 of one, half dozen the other, except you might pay $200-300 more for the Microtech.
My thoughts and opinions, YMMV.