Jesus Christ, this guy needs to get a life. I write OS/systems software and I don't care as much about my OS as this guy. I've had flame wars over design decisions but seriously, my OS is there so I can do work. If I'm not doing work, it's failing. The perfect OS is just there, being invisible, helping you do exactly what you want, when you want it, quickly. Just pick whatever allows you to do that and move on with your life.

P.S. Hardware matters too. You use a computer with shitty caps made in Taiwan and you know what will happen.