My wife and I had a two day stop over in England. Our general experience with hotels in England has been less than impressive so we were delighted at the Sofitel especially given that it was within the airport complex.
We loved the Arora Gatwick! It was beyond what we expected for an airport hotel. It was in a quiet neighborhood that it was very restful, but had quick airport shuttle service. We actually went back the following week when our travel plans changed, simply because it was so comfortable there.