3A > 4K > 6K > 2K > 5A (missing a window). I prefer A side seats because I'm right handed and the console and tray table are to my right in those seats. I also prefer to be mid cabin rather than too close to one of the galleys, even though light and noise pollution from the galley should be relatively low.

7A = 12A > 13K. 7A vs 12A depends on whether you prioritize being in the forward cabin (and thus not having PE/Y pax stream past while boarding) or being further away from the galley.

I'm meh on 1A; as noted above I prefer to be further from the galley, and there isn't a footwell size or other space advantage to the bulkhead. If not seeing any other pax is a plus for you, go for it.