I tend to prefer the daytime flight to Japan. You can get some rest on the flight but you get in early enough to walk around a bit, get a nice dinner, and get some sleep. With the overnight leaving 1am you will get served a full meal ~2-3am. If you don't get good sleep on the plane it's a very long time until nighttime after you arrive.

And I've been happy with AA's J product overall. Yes JAL's food is much better but AA's isn't terrible and I prefer their seat to JL's. AA has better IFE too.