Windows or Linux

Overall it depends on the situation, as the user above me stated!

windows for server hosting, linux for teamspeak hosting

Im going Windows all the way!

Windows Server 2008 R2 for game pc, Win7 on laptop, Ubuntu on other pc and a mixture of Windows and Linux on my server

Windows with Kali through a VM

Linux: Stable, Secure, Usually fast, most drivers are supported, open source.

Windows! Linux are light, but a pain in the ass to do things. You need to run like 200 commands a day when you can just do the same thing with a few clicks on Windows. I tried once to install Java on linux, it took me nearly 7 hours to figure out how to. Enough said...

Always loved Windows 7.
Had to move to W10 due to the fact there's no longer updates for it. :C

I only use Linux on my VPS and shit lol.

difficuly subject this one, i think windows is a lot more user friendly, but since i have been working with ubuntu server a lot, i have got a dual boot to zorin which does keep the cli commands fresh in my mind, and u have to consider the price of a windows licence, even though i did get a free windows 10 upgrade with my new laptop

Linux... No contest mate :@)