I'm thinking about staying here in April for our trip during the week. (April 7th - 12th) Whats the difference between the Carson, Gold, and Rush towers? Is it just newness? I need a double bedded room, so it appears maybe Carson is the only option. (I don't think Rush has any rooms with two beds per their website) Any guidance on your preferences, closeness to the casino/poker room, amenities, overall thoughts is appreciated. The price difference is pretty nominal between the rooms, and maybe an upgrade can be had? Thanks for your help!