Jewish delis in Chicago

A friend is going to Chicago and wants to eat at a good old-school Jewish deli since where we live, San Francisco, is pretty much a deli wasteland with the exception of Wise Sons and Saul's in Berkeley. Which would you suggest? She would prefer it to be near the Miracle Mile if possible. Thanks!

There is a dearth of Jewish Delis, authentic or otherwise, in the Chicago area right now.  The best, and most obvious choice, based on your desire to stay close Michigan Avenue, is Manny's Deli.  You can read the Roadfood review here.
 
Another option is a place this lifelong Chicagoan just recently heard about, but apparently has been around since the late '30s.  Frances' Deli on the near north side is a short cab ride from Michigan Avenue.  It appears to be a more varied and somewhat trendy menu than Manny's.  But if you want full table service and a cocktail to go along with your Corned Beef Sandwich, Frances' is the place.  Roadfood review can be seen here.
 
It's not that we're short on Delis, mind you, it's just that other ethnic groups seem to have overrun that market.  Italian, Polish, and German Delis are in abundance.  Jewish Delis, which could once be found in all quarters of the city and suburbs are fading away.
 
Have a great trip!
Buddy

http://www.perrysdeli.com/ 
Perry's Deli has been named "the official delicatessen" of WLS Radio. Perry's has also been featured on "The Rachel Ray Show," as well as in the Chicago Tribune and the Chicago Sun-Times. Perry's Deli is well recognized as the deli that provides the biggest and best deli sandwiches in Chicago, and has gained national recognition for its "no-cell phone" policy.
Gotta Luv dis place!