I've got a seat mate - he's stuck with the middle seat though because he doesn't have status - so for him to get in the premium seating on NW, he's definitely got middle & I've got my choice. I'm thinking right hand side of the plane window (as I like to sleep with my right side of my head against the window). Also, I like having the window area because even though there's less leg room, you have the space betwen the seat & the window to shove things like an extra pillow or something.