I'm afraid Delta 764 seat wins every time for me now over CW. No one clambers over you in the middle of the night. And whilst I wouldn't want to speculate about other people's dimensions, I'm >1.85 m tall and can stretch out flat really comfortably, and lie front, side, back, anyway totally easily on the Delta seats. I also find their service extremely polite throughout the flight, and the food miles better - particularly the cold plate - I think what used to be the NW 'champagne supper'. The other 767 are not as good as CW, but the prices are better, the seats are better and the service is better IMHO on the 767-400 routes. Lounges though... there was a thread about how we might feel about paying for lounge access on BA; I'll just say Delta make you pay for drinks in some of their lounges
Techno