Narita is hours away and is like a run down shitty J-MCI. All 70s wood paneling and orange carpet. Haneda is right next door and is a shining gem of airport perfection. It's truly glorious. I could talk for hours about the parking garage alone.
The problem is most intercontinental flights are out of NRT, especially those with practical departure/arrival times and definitely all the ones that you can get to/from the states with AA pts or Avios.