At one time or another, I've owned almost all the knives on your list, and the only ones that have remained in my possesion and EDC rotation are the Military and MOD CQD I.
The Military is the perfect EDC knife, flat, light, strong with good steel and a useful blade shape. A Military has always been in my EDC rotation (the only knife to do so), since I got my first one in 1998. You can't go wrong with this knife.
I EDC the CQD once in a while, but the knife handle is a little fat for me, and the placement of the pocket clip on the knife (over the cutouts in the handle and near the grip tape) tears the hell out of my pants pockets. It may seem like a difficult knife to carry, but the clip is positioned so that a good part of the handle sticks out of the pocket. This may be good or bad, depending on how you feel about it. I love the CQD, but it's a little too much knife for some situations.
The Benchmades are OK, just a little too small for me.
You can find a lot of info on the Emersons on this forum. Many of us have been disappointed at the low quality/price ratio. I owned 5 Emersons at one time (Mach I, PSARK, Karambit and 2 Surefire CQC-8s) and I currently only own one, the CQC-8.
As for the CRKT Crawford/Kasper, if you get the Pro model, with the dark gray aluminum handles (as opposed to last year's tacky silver handles), I think that you are getting a good value for your money. The CRKTs are very well made, the CQ is high and the prices relatively low. I'll get flames for this, but I believe that the CRKT knife is 70% or so of the real thing, at about 1/8th the price.
One knife you didn't mention, that should definitely be on your list is the MT/Lightfoot LCC. The manual ones are currently trading in the $120 - $140 range (I just got a Gen I for $118), and they are the best built knives that I have seen, not to mention one of the best looking.
Have fun on your new hobby, hope you have an understanding wife/girlfriend.
