I will say that my Kabar/Becker knives "seem" to have better corrosion resistance than my only plain 1095 blades (Moras), which while anecdotal, is still the only data I have one way or the other. As for toughness/edge holding, I personally have no idea. However, Ethan has mentioned more than once that he feels that 1095 CV is closer to O1 in performance, than it is to normal 1095. Myself, I doubt I could tell the difference, but I trust Ethans experience.
One thing I have seen the "ESEE" guys say, is that their HT is better. I haven't owned an ESEE, but my Beckers have been flawless so far (4 for 4). I think the reality is much closer to what has been said. Beckers are a higher volume line of knives. EVEN IF the percentage of missed HT's make it through the line for both ESEE and Becker, the Becker will have a higher number of total knives with "issues" (because percentages...). While I have no idea on actual volumes, or percentages, I suspect a large part of what people perceive as a HT quality difference
could be this fact alone.
And personally, I'd like to think around here we're equally worried about skills
. All I know is with the Becker knives I have, none have had problems, all seem to hold an edge just fine, they have decent corrosian resistance, the designs are excellently thought out, and the price is something I can afford.