I am Windows guy, by best hardware that I had, regarding laptops is my MacBook Pro (2014).
Really well made one.

On the other hand, the big names like HP,Dell and Lenovo are in top regarding my experience in corporate (from low to very high end machines). While IBM(Lenovo) used to be the best, I would give my vote to HP for continuously making laptops that just works. While Dell, has better design, I had lot of more problem with them.

For the gaming ones, Alienware is very solid, great experience with them.
Bad experience with Asus and Acer.

One of the good ones are Clevo based laptops (was XMG in my case) that had really good built.

All this from more than 15 yrs experience and 100+ models tested/used.