I think windows 7 is great, i have vista for now with a lot of bugs, but all the beta testers who are testing the Windows 7 RC1 find it very stable and much better than vista.
I have never installed MAC OS X, SOLARAS or LINUX, so i cant tell.

I was a Windows devotee ever since it was released. Until, that is, late 2006 - when my wife brought home a co-worker's 17" MacBook Pro notebook. I played with it ... and played some more ... and the next time I looked at a clock, it was about 3AM the following morning. THAT'S how engrossing and fascinatng it was. I ordered mine online that very same day, and haven't looked back since.

But your question deserves more than a "My OS is better than yours!" nonsensical thread. What are YOU doing with a new computer? Just cruising the 'Net? Photos? Music? Film editing? What are YOUR requirements from a new computer? Only then can ANYONE HERE intelligently answer your question!

just dump windows in the bin.
mac is great, but I'm a lynux man.

sorry never worked with solaras, but it can't be worse than windows

I ve installed Linux (Ubuntu 64bit), Mac os x leopard for just a test, Windows Vista and windows 7. Bill gates did it again, windows 7 is the best os i have ever seen, its something different just try it...