I have all of the mentioned guitars EDIT: except I don't have a CU24 Floyd, just a regular CU24. And a P24. And my HB II is a SC, plus I have a Spruce HB (double cut).
To me, the SSH is indeed somehow more versatile in tonal range compared to the MEV, and I'm not sure why - the MEV, on paper, should have more options. Perhaps it's because the SSH nails the tones it does "just right", whereas the MEV is "trying too hard to be something for everyone"? The MEV is heavier, too - maybe that's a factor. My SSH has the MTs. My MEV has a brazzy RW neck. So those might play into it.
Not that the MEV is any kind of slouch, btw.
Can the SSH or MEV do strat-like single coil tones? Hmm, in a pinch you'd probably get away with it in a band mix (David Gilmour's touring guitarist uses a SSH as primary electric, from what I've seen), but nothing really nails the Strat tones like the Silver Sky, IMHO. I have "real" strat (well, a Fender-Squier Mexi-strat, but it sounds as close to any other "Fender Strat" I've heard/played), and the Silver Sky just does everything you expect in a Strat, but without all those minor annoyances like the icepick bridge pickup. Again, IMHO. YMMV. May cause head of a golden retriever.