Well, objectively those all can be taken to the same level of edge refinement, there've been tests proving it, it's really all about sharpening technique, equipment, and the edge-geometry on different knives...
BUT that doesn't mean that some users have better luck than others with different steels!

As long as you can get your knife sharp enough for the task at hand using the tools you have available, and it holds that edge well enough for your needs, :thumbup:
S90V and S110V are different creatures, with ~9% vanadium and ~2.5% carbon they are approaching 20% carbide volume. S35VN and Elmax are both closer to 10-12% carbide volume.
Regarding carving wood, nearly all chisels and planes are flat-grind, just something to consider. Moras are well regarded for their carving ability... also flat grind. Something else to consider is that usually only the first few tenths of an inch or so are doing the carving, which precludes the need for a convex curve to the primary bevel. You can put a convex edge on any flat-grind blade. Don't limit your options to BRKT for dubious reasons.