> And they're all cheaper than their Apple counterparts of the same class.
I'm not really sure this is true. Last time I shopped for a laptop, the premium series ThinkPads (T or X series or so) cost pretty much the same as a similarly specced MBP. A Dell XPS didn't differ that much. The Apple hardware might even had a bit more oomph than a similarly priced ThinkPad or XPS, e.g. by having a CPU with a higher TDP.
An X1 Carbon from Lenovo would have cost more than almost any other laptop with similar specs.
Of course things might have changed in recent years, or pricing could be somewhat different in different markets (I'm in Europe). Cheaper series (such as ThinkPad E or L or whatever they've got nowadays) would of course also be cheaper. But based on what I saw, the old trope about Apple laptops being especially expensive didn't seem to hold if you compared it with premium models from other manufacturers, and not with value models.
FWIW, I ended up with Lenovo in any case and haven't been disappointed. But price wasn't really the reason.