I haven't lived in Chicago for several years, a place I miss every single day. Not being based out of ORD anymore, I was wondering what insight anyone can provide as to which of the RCC/UCs are worth spending time in, as I assume they've all been updated since the last time I was there. Do any of them have nice views, better seating, quieter? I've been back to the city many times since moving, but I haven't had any long layovers as I'm about to encounter this month. Any assistance as to which RCC/UC is worth the visit, is much appreciated.