Spiney
Don't knock the bar, it beats the hell out of having to stretch limbs in the galley, where you often feel in the way of crew, as you do on any other airline in Business Class.
As for turbulence I find 380 does well, and as most of my 380 flying is in tropical zones with plenty of CB activity I get plenty of practice. 777 is OK ie better than 330 and 787 in my opinion but not really very different to any other A/C around as compared to 380.
Cheers
Mr Mac