Hi Macca, I went to Alpe D'Huez last February with a group of about 35. There was a wide range of ability with the skiers and boarders and the place just suits everyone down to the ground. For the beginners they can just stay in the DMC and the intermediate/experienced can go all the way to the top (3330m) on Le Pic Blanc and Ski the worlds longest run - Le Sarenne (16KM) or Le Tunnel if you dare!!!!!
There are plenty of great pubs and restaurants, which is something high up on our list as the majority of our party are rugby playing maniacs.
So if you do decide to go there you will have a fabulous time.
Hope this helped.
Josh V