As a not very frequent SH BA flyer, I discovered this past weekend on a LHR-GVA-LHR trip that the 319 has a nice exit row with a bit of extra leg room but the 320 (with 2 exit rows) does not. I fact I would avoid the 320 exit row completely as the baggage restrictions downside has no discernible offsetting upside unless I've missed something?

BTW the return on Monday evening was a zoo with more babies (including I think 3 sets of twins!) than I've ever seen on a flight. There was a stack of strollers to be loaded that would have not looked out of place in Mothercare. Q. If there are 2 parents with 2 babies, do they have to be split across the aisle for oxygen mask purposes?