Since my last post, I've been bitten by the Benchmade bug.
Short reviews of each:
310 Benchmite II: Solid small knife. Too small for real use though, I can only get two fingers on the handle. Mine does key chain duty for me. Really people friendly. Only quick, reliable method of opening for me is two hand opening. The auto version makes for a much better knife, but not available to me in Texas.
530 Pardue: My EDC blade. It's very light/thin for the blade length, and the thin blade works great for me in every day usage. The plastic handles don't look/feel too durable though, and the thumbstud is too small. Also, the Axis flick is rather more difficult (EDIT: originally "impossible") due to the light weight of the blade. Pretty people friendly.
550 Griptilian: Great inexpensive knife. Narrowly beat out by the 530 Pardue for the EDC spot. The Grip's a better knife, but the 530 Pardue's carryability won out. Pretty people friendly as long as you avoid the Axis flip.
523 Presidio Tanto: Nice solid knife. Blade is more suited for prying and other sorts of abuse than previous knives mentioned. My only tanto point and only combo edge blade. Don't like the combo edge. The tanto point is more mixed. The scales also eat through pockets quickly. Benchmade's BK1 coating sucks. Not people friendly at all.
610 Rukus: Big about covers it. Solid too. Very practical blade to boot. Oh yeah, the Axis lock rocks. Overall, very good knife. People friendly? Uhh...
630 Skirmish: Large knife, with a larger blade than the Rukus, but in a much thinner and lighter knife. Surprisingly carryable for it's size. I EDCed it for a while. The recurved blade is significantly less useful than the Rukus' drop point. The frame lock is solid and aesthetically better than Axis locks. Like the Pardue/Griptilian, the Rukus is the better knife, but the Skirmish is more carryable. If possible, less people friendly than the Rukus.
Now to get a few Spydies and Kershaws...
/EDIT: A version of the Axis flick is possible on 530 Pardue. Lock just has to be pulled all the way open, which will push blade out about 30 degrees. Still requires a fairly whippy wrist flick to open, but it is doable. Neat.