Originally Posted by mishkira
51 - more space across the seats and on the floor where 51A is missing
52 - window seat has lots of leg space where 51A seat is missing (if PAX in row 51 won't put their bags there)
53 - to be avoided (toilet, less recline etc)
All in all, 51 (our preference) or 52 depending on what you need
Have a look at
www.seatguru.com and follow the link to British Airways on the left hand side. They have a very useful guide to the good and bad seats on most major carriers. Have a good trip