Speed isn't a big factor for me. I wouldn't be talking about a netbook if it was. My dell mini 9 is already plenty fast for me.

An OS that I can depend on, that has proper internal design, that scales well, utilizes standards instead of perverting them, that works the way I think it ought to work without getting in my way, and that isn't owned by a rapacious vendor. Those are much bigger factors.

I get some of that (but not all of it) with Ubuntu. I get some (different pieces) of that with OS X. I get _none_ of that with Windows.

(and, it's not a linux high ... OS X isn't even linux based, it's unix based -- that would be the operative concern, but I wouldn't call "having standards" being on a platform "high")