Spiro's Pizza on 17 Ave SW used to be the best in town. I haven't been there in ages now that I live way up north.
Used to love Tino's on Center Street, wasn't aware they'd shut down.
Karouzo’s on 4th Street NW is one of the places for good pizza that nobody seems to know about. But it's been there for 30+ years.
Stromboli's in Kensington was also great, but it's gone downhill since the original founder left some time ago.
BTW, franchises like BP, Pizza Hut, Domino's shouldn't be part of this conversation. It's fast food pizza. It's like comparing McDonalds or Burger King with a gourmet burger.