Originally Posted by zaphod424

Definitely an unpopular opinion, I think pretty much everyone I've spoken to would say the opposite, that the 350 is quiet and well built while the 787 is cheaply built and rattles and vibrates a lot more (and it has those hateful windows).

I suspect though that the rattling you experienced is less to do with the 350 itself, and more to do with BA's interior fittings. Some of the CS seats are looking a bit worse for wear now, and have loose storage doors etc. Plus being at the front means you have the crew cupboard which may also cause a rattle. It's also likely that the fact that the 350 is so quiet is actually making you notice this kind of rattling more, whereas on the 777/787 it would be drowned out by all the other noise that those planes make.

My favourite seat on the BA 350 is 9A/K, as it has the best window lineup imo, and is far enough from the galley that it's basically as silent as an aeroplane could ever be (other than the snoring from other passengers), while also not last to be served.