Having flown on the 764 to London a few weeks ago, I wholeheartedly agree about the seats and the lack of foot room.
As I have flown CO once, I am not going to be comparative in my observation.
However, minus the ground ammenities, I have always found the flight attendants to be very cordial and warm. Maybe I treat them with respect and a warm hello and I have never been disappointed.
As for the food, I have had some of the best airline meals up in the air crossing one pond or another on Delta. I have also have had some meidocre meals as well. But I can honestly say I have never had an "awful" meal.
I will agree with you on the T4 lounge. Beautiful, plentiful food. Did you happen to make it upstairs? Gives a great view of the takeoff roll off of 24L? Also much quieter because not many people know about it.
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