Hardware wise, PCs are more suitable for gaming. But for experience, some may say phones are better because it is lightweight and portable. Still, PCs are better for me. They offer full gaming experience and have better games than mobile phones. The experience are incomparable since you get to play full-scale on PCs and not on phones. I tried playing Diablo 2 on my old android device and comparing the experience with PC, you can say that it is uncomfortable to play on your smartphone. Plus, your phone's life span deteriorates easily when playing games for too long unlike in PCs. When a part breaks, it can even be replaced or upgraded.