An old friend back home, (Joiner and cabinet maker) always maintained the best hand saw was a Henry Disston D8. Made in the USA. :-)
He was a joiner in the days when if you wanted sash windows, you ripped the wood down and planed it before you started.
Ken Roberts. a very fine man.
Even the Disstons need setting and keeping sharp. Paul Sellers teaches all that. Even how to set teeth without a setting device. This sharpening and truing/set, methinks, is the most important aspect of hand-saw use, same as chisels and planes and well, anything hand-powered. It's just that most folks think they know how to sharpen a plane iron or chisel (and plenty can). Saws and drills are a bit more complicated, but just as important for satisfactory work.
I sharpened an auger in the field one day as I happened into the work (holes in a post) after one hole had been drilled. As the fresh person, I took over and looked at the bit-woefully dull. Having no proper file, I pressed a chainsaw file into service and cleaned up the leading edges as best I could. Then drilled the hole without much thought about it as the bit worked well-enough. It might have taken a minute or so at the most.
I then looked up and there stood two folks with jaws on the ground (full agape).
AT that point they commented about the first hole taking
half-an-hour to drill.
It was a Kodak moment for sharp tools, no matter the job.