We camped in Allemont (well, we hired a static actually but it’s a nice campsite too 🙂 ). The place was full of riders (Tracey Mosely amongst others), had a great atmosphere and was handy enough for the racing – a bit more of a trek to the start in the morning but perfect for the finish – a leisurely DH from the qualifier finish and the Mega itself finishes just behind the camp site. Those in Alps D’Huez have a lift back from the qualifier and have to queue for buses after the main race.
The only disadvantage is it’s a bit quiet, and you have to drive up to Alp d’Huez on the Friday evening to get your race boards for the main event.