I don't think any of the economy seats are that great.
80a or b would be my choice for a night flight, but there's no window for day flights. 80a does access to a side bin in order to stash the pillow and other crap on the seat
The A seats that aren't exit rows or bulk heads have the IFE boxes that mean you can't position your legs effectively.
At least the rear mini cabin is only 2 seats along the sides so you're not too hemmed in but still not great if solo on a night flight where your seatmate is asleep and you need a toilet or leg stretching trip.

I've got 80a on a SIN jaunt later this year and whilst ok for some of it, there's a load of daylight bits I won't see such as seeing the tankers / ships on approach. Really don't like being unable to see outside like on the LAX-LHR flights where most of the time you are confined to a darkened metal tube.