I prefer the backwards facing seats myself. The plane flies with the nose slightly high, so then when I'm sleeping my head is higher than my feet. It's also safer in the event of a crash, all the RAF transport planes have backwards facing seats for this reason.
When travelling as a couple it is nice to face each other and be able to chat.
Those are some of the high points of the BA configuration, there are plenty of downsides that have been discussed here at length. (Again and again and again
)