I would avoid 1A and 1B due to intrusive light and noise from the galley. 1F is much better for resting, though 1E&F are set slightly further back than 1A&B. The area beneath the rather optimistically termed ottoman is about enough to accommodate shoes and the seat can be lifted from flat to upright without moving whatever you squeeze under there. I only fly in row 1 but if I remember correctly, on the 752 flatbed rows 2-4 have larger cutouts for the ottoman.

I would be interested to hear what others think about the difference between the flatbed on the 772 and 752. I find the 752 noticeably smaller, though the publicised measurements suggest only one inch of difference. 752 is also supposed to be slightly wider, but I have never noticed that. Perhaps I am missing something ?