I am Windows based so my owned software is all Windows based. From time to time I upgrade software and purchase CDs of software from several years ago at low cost from dealers in used or discontinued new software. About the only new software I purchase is the annual TurboTax on CD. I personally am not interested in 'renting' software or buying via download. I am not interested in an operating system other than Windows.
Win 10 is a hungry operating system so when I replace my computer it will not have less than 8GB RAM of memory so that I am not stuck with the 'skinny' operating system.
I do not need a built in CD/DVD player (though it is nice) because I have an external one that is USB.
I do use USB ports extensively so the more the merrier, but my minimum is 3 and I want them readily accessible.
My absolutely best computers have been HP, whether laptop or desktop machines.