Just to add some alternative perspective for others on this thread, I am 180cm tall and have size 43-44 feet and I say this above is a huge exaggeration (based on personal trips SIN-AU on the regional A350 but also the ULH US-SIN).
The bulkheads are roomier no doubt, but I've rarely found them worth the machinations often needed to land them these days. You're going to travel comfortably either way.