As a Club Carlson Gold Member, I was upgraded to a Business Class Room at the Radisson on Flagstaff Gardens Melbourne. Business Class aboard Finnair and business at Radisson are slightly different with the former providing much more amenities.
What's your favorite brand? If you're not a points participant and have some disposable income, then I'm sure it is the Four Seasons. If not then I'm guessing its either the St. Regis, Conrad, or Park Hyatt.