Back home: Ginos Original (that's Toledo OH); Pizza house and COttage Inn in Ann Arbor MI are pretty good too.
For Chicago deep dish, Giordanos all the way (been known to carry a half baked on planes... you should see the looks you get when THAT goes through security)
AlphaSigOU was on the money re. pizza in Texas-- although there's a new family run place near me that's decent (Upper Crust).