We just had an utterly great experience at Chefs de France, which has never failed to impress us. The food was great! This time we just went for lunch, but our past dinners there were utterly excellent -- the best available in the theme parks themselves. You won't regret it.
Unfortunately, we've had no such luck with Le Cellier. We've eaten there several times and it has failed to impress us. Once I had a steak so tough and grizzly, that I had to send it back, only to get a completely different steak, which was just as bad. The service is okay, there, though. The atmosphere is a little closed-in, but not too bad.
I'd do Chefs de France three times before I'd do Le Cellier again.