My first F experience was on the 747 and combined with a perfect crew it was excellent. Basically as CWS says it's a more intimate cabin and there's less footfall which is in my opinion far nicer. I've now done F on the 777, 747 and 380 and the I still like the 747 best. I like 1K when flying to BOS (the sun is facing the A seats) personally but these are blocked for Gold/Emerald/Premier until T-72 so you need to be lucky and find that row one is still free.