I'd vote PC for desktop, and give an even tie to both for laptop if that laptop is a Surface Book. But personally I have no use patterns that would have me buying a laptop at all, I still love desktop PC's because I build them myself and they last for years. I've had my current desktop since late 2009 and the only thing I've ever swapped out in it is the CPU fan and I use it heavily. It cost me $600 to build and all parts were state of the art the year I built it, and less than $20 to maintain in 5 years. The reason it cost me so little is that I bought most of my components from some wise online shopping and sale hunting. Even my monitor is the original lol.
I've only had around 5 PC's since 1995. My experience with macbooks and PC laptops has been vastly different, only managing 3 years at the most before needing repair or replacement so I stopped buying them and use tablets for portability and couch surfing instead