The best pizza I've ever had was from the long-defunct Borderline chain, particularly their Chester location. Thick, buttery crust, a tangy sauce, and just the right amount of cheese and meat. Burned down in the mid-late to 90's, but their recipe resurfaced at what was R&B in Osage, and now allegedly resides at a carwash/liquor store in Osage, which I believe is called Kwik-Serve, or something like that.
I'm hoping someone else here has ever been to Borderline in Chester. Damn, that was some incredible pizza.