If by base room you truly mean the most BASIC room at each property, I would suggest Bally's or Cromwell, although your choice of Paris isn't a bad one. Bally's rooms are all larger than average. Resort Tower is more recently renovated than Jubilee Tower, but Jubilee rooms are still in great shape. The property is easy to navigate and one of the quickest accesses to the strip of the large resorts. And the pool is what a pool should be; relaxing and mellow. Cromwell rooms are small and can be darker than most due to positioning and size of windows. But I've never seen a better renovation of a small room. It feels more spacious than it is. There's an L-shaped couch, coffee table and a small make-up table with mirror. The shower is wonderful, with both a rainfall showerhead and hand-held showerhead. It's probably the best room for its size anywhere. And room to strip is the quickest anywhere. The suggestions in this thread are good. But they aren't for base rooms.