These are my favorite pizza places from my time on the road. I only put places that I've actually eaten at.
ATLANTA - Cameli's & Fellini's (open till 2AM)
ATHENS - Peppino's (best pizza in the area)
ST. LOUIS - Pi Pizzeria (get the deep dish)
BROOKLYN - Di Fara Pizza (takes forever; worth it)
DALLAS - Serious Pizza (HUGE slices & open late)
AUSTIN - Hoboken Pizza (open late)
NASHVILLE - 5 Points Pizza (slice shop open late)
LOS ANGELES - Pizzeria Mozza (fancy pizza)
CHICAGO - Pequod's (carmelized deep dish)
I'll be adding places as I try/find/remember them.