I will be staying in Chicago on the magnificent mile in a couple weeks and am looking for some good restaurant recommendations. I don't know the city at all but we are happy to cab to different areas for dinner. It's for a group of about 8 people in our 30's and budget is not a concern. We would like great food with a social atmosphere. One night we would like to eat Italian but am flexible on the rest. We have 3 nights and would probably like high end for 2 of the nights and then something a little more casual/neighbourhoody for the 3rd.
Any suggestions? I was considering Spiagga for our Italian option but would love some other recommendations.