Welcome John_Wayne777,
I have been wanting to get another folder for a while too, one that will serve as more of a general utility knife. One that will hold an edge really well and that will stand up to some mild abuse.
The problem with this is that there are ALOT of knives that will fit the bill here. Without some more specific requirements (amount to spend, style, materials, etc). All I can provide is my anecdotal experiences, but I'll try to answer your question.
For folders, I've had CRKTs, Bucks, SAKs, an SOG, an Al Mar, and my favourite, a few Benchmades.
My two most expensive folders are an Al Mar SERE 2000 (which has passed the spine whack test) and a Benchmade LE 732D2 (an Ares in D2 steel, with a Black Teflon coating). I like them both very much, and am surprised at the edge retention of VG10 more than anything else I have.
I don't have any Spydercos, their style doesn't particularly click we me (with the exception of the Lil'Temperance). Spyderco has a great reputation here for utilities knives, which would probably fit the bill. Lots of options for price. Very popular Spyderco's are the Delica, Endura, Police and Military. Priced to suit.
In Benchmade, you can't really go wrong with the AXIS AFCK (in D2), or Ares (73x series) or a mini-griptilian or even fullsize (my mini-grip gets just as much, if not more carry than my larger folders).
I wasn't impressed with my SOG (an access card, almost a novelty item IMHO). Anyhow, CRKT makes some good knives for the money, I haven't had any of my 3 M16's locks fail on me. CRKT AUS8 is decent, but I'd have to give the nod to Spyderco's VG10 (from forum response) or Benchmade's 154CM or D2...
From my experiences, the best QC seems to be Al Mar, then BM/Spyderco (about even from what I've read), then CRKT.
Hope that helps,
Regards,
Shaun.