Lenovo has the best quality PC laptops. Apple has the best quality laptops.
Buy as much RAM and storage as you'll ever need. Increasingly these are non-upgradable.
I've had lots of Dells and HPs from work. They all started failing after 2-3 years. We used to get IBM (now Lenovo) Thinkpads. They never failed me, and I was really sad when the budget weenies switched to HP.
My personal machines are all Macs now, before they were all IBMs. Some friends have new Lenovos and they seem excellent, like the old Thinkpads.
You can run Windows on a Mac.
Note that IBM is moving to Macs.
http://www.computerworld.com/article/2998315/apple-mac/every-mac-we-buy-is-making-and-saving-ibm-money-ibm.html