I was not impressed with the REAL pizza I ate in Aviano. I had better Calzone in Germany.
Not enamored with really anything from the big chain shops. The little shops I ate at as in kid in South Philly and Chester tasted better than anything I can find today.
If I had to choose, California Pizza Kitchen is alright. The Carne Asada and Thai Chicken is palatable.
As far as frozen, supermarket pizza goes, DiGiorno is about all I can stomach.