Originally Posted by JDiver

I think you’ll have to tell is more. Specific aircraft type, etc.

For instance, in Business class, the 787-8 and 787-9 have different seats. 777-200s have the same seats - some have the -8 Zodiac seats, and others the same Super Diamond as the -9.

If it’s Business Class, BA uses a rather older design where the seat is narrow, the extension to a bed is basically a fold-down footrest and most BA. Budiness seats are set up in pairs - you’ll generally have to climb over, or be climbed over, by another passenger in most seats.

I’m a bigger guy and have flown all the ones I’ve discussed. AA hands down - unless it means connecting to a BA narrowbody, as its Club Europe is worse than most AA coach but offers an empty seat between an aisle and exit seats. Though I may recall the seats may be expandable in some narrowbodies. BA forum has a “dashboard” that makes it easy finding threads on aircraft types with greater seat detail.