To be honest, it is very unlikely that any of these properties will meet the bar that you are setting, and very few U.S. properties will hit the standard set by even an average European upmarket property. For example, even if you find a club lounge that is open, it is very likely to be a disappointment, laughable compared to the standard in Europe. If you forced me to pick from one of the list you provided I would go with the Blackstone due to a combination of hard product and location, but I would not prepare for a world-beating experience. I could also be convinced of the Hotel Chicago simply because one cannot beat River North for location. But either way, I would plan on spending little time in the hotel and maximizing your enjoyment of all that Chicago has to offer (which is a tremendous amount).