> I’m heading to Chicago next month and I’m wondering were the best
> place to eat a deep dish pizza is in Chicago.

Nobody seems to try to answer your question with specific pizza joints,
probably because all the pizza places are pretty good here -- you
rarely actually get bad pizza, although it does happen, such as at a new
joint along Lake Street, just east of Desplaines.

You almost can't go wrong here, but since you're traveling about 2k
miles, here is a short list to check out:

For Deep dish Chicago Pizza
Pizzeria Uno
29 E. Ohio St.
(312) 280-5120
www.unos.com

For Amazing thin crust pizza:
Pat's Pizza
2679 N Lincoln Ave
(773) 248-0168
www.patspizza.info

For Awesome 4-cheese-no-red-sauce pizza
Pat's Pizza
628 S. Clark St.
312-427-2320
No web site of their own noticed

Excellent competition abounds.

Good luck.