1. Marions Piazza. Specifically the Beavercreek one, although I'm sure they are all good. The super thin slightly burnt crust, so crispy. The tiny bite size pieces. So tiny that it's like eating popcorn. You can always eat one more lil piece. I don't get sausage on pizza from anywhere-except Marions. It's ground up so finely it's just a layer of smooth meat on top. So good with that thin crust. The sauce. Yes, it is canned sauce. But dammit it is the BEST canned sauce I've ever had. Just love Marions. Plus, and I'm sure some others here that grew up around Dayton can attest to, the place holds some special memories from my childhood. They all used to have giant arcades, which I remember being amazing as a kid. You can get a pitcher of beer or Pepsi, or a canned drink from virtually every other beverage maker. It's so odd but cool. You can RC Cola, Pepsi, or Coke. Just unique.
2. Donatos. It's a chain but a local chain. And just because a place is a chain doesn't necessarily mean it's bad. Sometimes something so great has to be spread around. And besides, I've also had mom and pop pizza that sucked. It can go both ways. Not much to add about Donatos that other's haven't. I love thin crust pizza and the cornmeal dusting on the bottom, the usage of provolone cheese over mozzarella, and the large pepperoni pizzas's with over 100 pieces (about 104-106, I used to work there), are just some of what makes Donato's so good. And while a lot of other places just have specialty pizzas for the sake of having specialty pizzas, Donatos has some truly unique ones. I especially love the Mariachi pizza's, in either beef or chicken. I like it cause it's got a great mariachi seasoning and isn't as messy like a lot of places taco pizzas.
Also, I think Donato's has some of if not the best subs of any pizza place. I prefer Donato's subs over many sub only shops.
3. Sbarro's... Please, be kind!!! What can I say? I've never been to New York or Italy, I've only had Giordano's and Uno's in Chicago, and my current city of Fort Wayne has crap pizza. Just the worst. But Sbarro's. I dunno. I've always really liked the big floppy slices. Maybe it's tied to childhood memories at the mall eating Sbarro's. but I still grab a slice every now and then and still find it excellent.