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Of course, Windows is the best OS and if you are a gamer, you'll have to use Windows. Windows is the best User Interface & user-friendly for sure. But if you're working in a network environment or using any kind of server you can use Linux OS.
For me it is the Mac OS, I have used windows but I have never used Linux. But in my opinion, Mac OS is the best one because you get better security and it is much easy and fast to use, it is user-friendly and the best part is that they give you a huge battery backup with Macbook.