It depends. I used to like windows, but now I'm almost all aisles, on the left side of the plane, so I can stretch my leg and work on my computer without elbowing the person next to me with my right arm when I move my mouse. And I can get up whenever I want. The only time I will consider a window is on a red eye when I want sleep, but only if I can get a bulkhead or exit row with extra legroom.