For the last 6 or 7 years I've used Murray's Original Models for work and I definately favor the Blue Super Steel. It has shown itself to be hard, resistant to chipping and easily sharpened.
I usually just strop the blade on a fine stone and the edge pops back up. The knives are spendy now at almost 4 billls but I like the sheath, the size and feel of the knife and it holds up better than anything else I have used. The Super Steel knives have been consistent from blade to blade offering the same performance. I used to wear a knife out about every year or two, these are giving me 4 to 5. I'd like to see somebody do a comparison test on them but in the absence of anything better I'm hooked. I will not use a folder for work (You don't have to stand up to use them) so I focus on smaller fixed blades.
I tried a Dozer for work in D2 and it chipped so badly I sharpened it and got rid of it... I have a pretty long list.
I do have to wonder what Murray's knives would be like if it was possible to "friction forge them".