I hate the old style CW seats, where if you're in the window seat you have to climb over someone to get out. If you're in the aisle then there's no privacy. There's also no storage, unless you are Upper Deck on the A380 and the IFE is small and old. In terms of F, I don't think there's a huge differentiation between any of the seats in the same way that there is between old CW and new CS.