Hello --
Sharp knives:
I've found most knives from:
Spyderco
come to their new owners VERY sharp. Another company I was surprised not to see mentioned within the first few replies would be:
Kershaw.
For factory blades I would be hard pressed to choose between these two companies for the title of "Sharpest from the maker" -- a knife from either of these makers would be one you could carry and use safely as soon as you removed it from the packaging. Nice quality at a good price - you don't have to a rich guy to get a very good knife from these two makers.
Dull knives:
As for dull, I hate to badmouth a company which may make the best OVERALL quality production knives, but I would have to say:
Benchmade
could do a much better job of providing a sharp edge out of the box. I own over 30 Benchmades, and everyone would need a light touching up if I were to carry one. The sad thing is their knives are much better designed and in some cases a lot better made than knives from Kershaw and Spyderco. The inovations Bechmade has incorpoated in their desugns have lead the industry. Now why can't they sell them to us RAZOR sharp?
While I don't consider these useable knives in today's world, Case folders could also be a lot sharper than the way they get to us. Their desins are well made and often beautiful works of art, but not modern enough for everyday use in a hard world. Their steels need to be better, and they need to use better opening methods, but they REALLY need to be a lot sharper, and to be able to hold a sharp edge. I'll bet anyone out there Case knives are only about 53 Rc in hardness -- much too soft for today's knives unless they will only be used to open letters or cut a loose thread from clothing.
Scott