Originally Posted by mvoight

You need to check more specifically than 757 or 767.
Seating on 752 has domestic first class seating
Seating on 75L has international business class seating (slanted "flat" seat, next generation business class aka NGBC)
Seating on 763 is NGBC (762 is a 2 class plane)
Seating on 762 is not flat. (767-200 has 3 classes and is used for transcontinental flights)