Now they are all embodied with the latest seat, time for my little survey to be published. I am focussing on those seats that offer a little extra room when the seats is in bed mode. This is good for 6ft and above people who - like me - can't stretch out fully in the 'normal' seat. It is based on hard evidence - sitting in many of the seats and inspecting the rest.

Main Deck

Between Door 1 and 2 (applies to 70J planes only)

12J - offers an extra 3" of space. While an aisle (and thus less desirable for sleeping in owing to light, noise), it is unusually private with no foot traffic and only a little noise from the F galley
13D has a shield (more details below) but there is around 1" between the footrest and the shield)
14A - offers an extra 2".
14EF - offers an extra 1" - would be more but the bassinet intrudes into the footspace slightly
14K - 2.5", slightly more than 14A.
13B, 13G do not offer extra space. They have a shield around the footstall, which wraps around one side and 3/4 of the end of the seat.

Aft of Door 2

20A - offers an extra 2".
20EF - offers an extra 2" - the bassinet intrudes into the footspace slightly but still leaves more room than 14EF
20K - offers an extra 2".
17BDGJ have the wraparound shield