I'm more of a Lou's guy, but it's hard to find a pizza I don't like. I remember a place in Ames that did the corn meal deep dish that I thought was pretty good, but it didn't last long.In all fairness, even though they are both a "Deep Dish" style pizza, they are two quite different pizzas. Lou's and other "Chicago Style Deep Dish" Use a corn meal crust as a base layer, then what I would call a normal cheese layer, the toppings, then sauce on top.
Giordano's makes what's called a Chicago Style "Stuffed Pizza" It's a normal bread flour (typical pizza crust) style with a very thick layer of cheese with any toppings. On top of that goes another thin layer of crust, (some even put another thin layer of cheese on top of that) then the sauce on top of that.
Yes, both are made in a deep pan, but they really are two different experiences. I usually prefer the Lou's style deep dish as the cornmeal crust leads to a crispier texture which I prefer. And I find the stuffed pizza to be just too much most of the time.
My prefered is a taven style. I'm a thin crust fan for the most part. I prefer crispy, almost slightly burnt and not too heavy on cheese. I need to get to New Haven sometime as that pizza seems it would be a favorite of mine.
If people are in Chicago around Lincoln Park and you like Chicago and Detroit style, Pequod's (sp?) is kind of a hybrid and damn good.