Obies is long gone, It has changed hands several times and gets worse each time and the old atmosphere is gone as well.
In my opinion the best pizza in Nashville is House of Pizza in the arcade downtown or Joey's House of pizza in brentwood, they used to work together in the Aracde , and now each own there own place so the Pizza is almost identical. It is great at either place. The Arcade location is older and has that kinda Obies mystic, where the decor is of no concern and the Pizza is the reason for being also the arcade is open on saturday until about 4pm. Our favorite thing is to go about 2 in the afternoon and get a fresh hand made pie. Because of the offices in downtown Nashville you cannot get inside that place on a weekday lunchtime the line is out the door and into the street. .
Also we just tried Guido's in Cool Springs and it was really good and I will go there again. They have a flat , thin , hand tossed pizza very similar to what you get on the streets of NY.