AUH on SkyTeam
From my experince with AUH, you are only going to be able to get in and out of AUH on SkyTeam via AMS (KLM) or CDG (AF). There are several options back to the US from either AMS or CDG to all the hubs.
I've tried to find a way to connect through JFK to CDG so I can ride on the A380, but that routing never comes up.
If you can get up to Dubai, you have the same options, or the direct flight from Atlanta.