I live in Chicago and have tried all the frozen pizzas you can imagine over the years. Tombstone, DiGiornio, Freschetta, Red Baron,Tostino's, Tony's, Reggios, Home Run Inn, Uno's, Jack's, Amy's, Wolfgang Pucks, Jeno's, Stouffer's, Celeste plus all sorts of private label pizzas too numerous to mention or remember. Some have been good and a lot have been bad.
One of the best I have found that I discovered as of late is Palermo's Primo Thin
It's the best frozen pizza I can remember having in a long time and I have 30 years of frozen pizza eating under my belt to prove it. They sell them here in Chicago at Jewel Supermarkets and at Costco, albeit in limited variety at Costco. I just picked up a 3 pack of their Magherita pizzas at Costco the other day but haven't had one yet. Their cheese pizza that I have had is very,very good and like I said, one of the best. Here is a website I found for them.http://www.palermospizza.com/