If you are not doing Rails work, do people find Linux that much more productive these days than windows?

I generally buy Thinkpads because of the keyboard and cost (upgrade myself), and used to use Ubuntu probably 85% of the time. Overtime I have found myself doing more and more in Windows, because of both drivers and battery life.

For sys admin in makes sense, but for general dev work, I tend to find everything works just fine on windows, plus it makes day to day usage easier.