My case is exactly the same. I like Hotel Deluxe, C6 likes Knightsbridge. Finally we bought Knightsbridge. We sleep on that over 1.5 years la, just a little bit soft compared with the new, because we random turn it over.
Sealy is very good i think. But only 1 problem, it is very heavy, over 60/80kg, need two person for changing the bed sheet and turn over. The one we bought is 5'X6.5'. Please check carefully with your housing lift for entering or not. Because some of the new estate lift are quite small.