Chicago Hotel Recommendations?

[InBetweenDays]

I'm going to Chicago at the end of the month for a conference. The conference is at McCormick Place and I'm trying to pick a hotel. None of the hotels with conference rates are particularly close to the conference, so I'm looking for some help in deciding where to stay. Conference hotel options are:

• Fairmont Millennium Park
• Hyatt Regency Chicago
• Sheraton Chicago Hotel and Towers
• The Gwen
• Inn of Chicago Magnificent Mile

All are around the same price, except the Inn of Chicago which is about $50 cheaper. Recommendations between these? Or others that aren't on the list that you'd recommend?

[boiler717]

Which Hyatt regency? There is one next to McCormick.
Not the Sheraton, I hate that one.
If it's nice weather, I stay at the Renaissance Blackstone because I can walk the 2 miles to the convention center. Bad weather, I stay at the JW (but probably too expensive if a tight budget). It's in the loop.
If I have a lot of free time I might stay more central Michigan Avenue (either Marriott or Westin).