Pc.

• more utility than just games. Code, write, etc.
• a backlog of games going back like 40 years
• will still be usable and with new content for years. A PC today will probably be able to play some hot new indie games in 15 years.
• no subscription fee for online play, generally
• more free games
• many games are cheaper
• broader range of input choices
• emulators and the high seas, if that’s your thing

Edit, days later: and mods! Mods are huge.