HP or Dell for computer listening ?

I mostly listen to youtube, sound quality is never great there and can at times be just terrible. I have never used outboard dac/headphone with computers before, but now that I got much better headphones, I would like to improve it further, that's why I bought the Burson. Don't have it yet. I am thinking desktop computer.
Everything will be plugged in Furman power strip/conditioner and I will be using Wywires Silver USB cable.

Thank you all. I will most likely get Dell and hope that I'll get lucky with it for the next three years. I wouldn't count on more.