I can't comment on the internals (and I actually don't like Apple and their software), but comparing my TP X1 Yoga (basically Lenovo's top of the line) with my

I can't comment on the internals (and I actually don't like Apple and their software), but comparing my TP X1 Yoga (basically Lenovo's top of the line) with my partner's new Macbook, the build of the latter is noticeably more tight, with barely noticeable seams where the metal panels come together. The Thinkpad's build is pretty good too and I'm fine with it, but I just can't help noticing the build quality of the Macbook.