If I could only carry one knife , I'm not sure which it would be. Probably something along the lines of a Buck 110. But then again, a clip point is not ideal for every task (no blade shape/type is) so maybe something like a scout/camp/utility or SAK Tinker/Super Tinker or Farmer. However, a SAK is not really ideal for heavy cutting tasks, so maybe a Sunfish would be better ... or a Barlow or canoe ... or a Stockman for a variety of blades ...
I think I'll just keep EDC'ing my Buck 110, 301, 389, Marbles utility/camp/scout knives and CRKT Guppie and Leatherman Wingman multi-tools.
If limited to a single blade, a Buck 110 or Schrade equivelent.
All with what ever steel the factory sees fit to use. I don't baton my knives, nor am I in the habit of stabbing cars, so I don't need a "super steel".