alt Hacker NewsATL to SFO would almost certainly top out at first class, not business class. This is true of most all domestic routes. First class on international also just gets you the 15 degrees and 1 or 2 fewer chairs per row, it's business that gets you the lie downs and such.
The food will probably still be worse than a first class international flight though. Not as many people paying as much and not enough air time to really force all of them to want to eat airplane food in the first place.
> First class on international also just gets you the 15 degrees and 1 or 2 fewer chairs per row, it's business that gets you the lie downs and such.
This is not my experience at all. First class is better than business class on international (and domestic, of course, though relatively few domestic routes have true three cabin service [counting all the slightly different economy levels as one cabin]).