Thurman Cafe has some of the best burgers in Columbus. Expect a wait. Schmidt's is pretty good, the german potato salad and cream puffs are, imo, the best things they offer. There are better places in German Village.
We've never tried Thurman Cafe, and I gotta say the burgers looked gross (fried grease bombs) to me on Man vs Food. Are they better than they look on the show? My DH has a serious burger jones, but even he thought they looked unappetizing on the show.