I recommend going local: Nada, Jean-Robert's Table, Sotto Restaurant,  or Via Vite downtown, Bakersfield, Kaze Restaurant, Senate or Taste of Belgium OTR  in Over-the-Rhine, Bouquet, Otto's, or Dee Felice Cafe in Covington, KY, or Moerlein Lager House or Yard House (chain) at the banks.

So many great places! 

I was born and raised in Cincinnati, Ohio and worked in several restaurants. There are many great places to eat depending on your palette and the amount of money you want to spend. From great pizza at LaRosa's Pizza Queensgate or Uno Pizzeria & Grill to Greek style chili at Skyline Chili. If you like Bar B Q then Montgomery Inn-Ribs King or Walt's Hitching Post  in Kentucky is a good choice. For a more refined place then The Masonette or Mt Adams Conservatory is what you are looking for. They have anything and everything in between too.

One must restaurant is the The Rookwood in Mount Adams. http://therookwood.com. All of the pottery pieces are from a museum. The food is to die for too.

Nada - amazing tacos, Rock Bottom Restaurant & Brewery - amazing nachos, Yard House - amazing cheese curds, Holy Grail Tavern & Grille - have to get the Reuben rolls!

Anything in over the rhine area will impress! A new great bbq place called Pontiac BBQ has an interesting cocktail list and across the street is The Eagle which has amazing fried chicken and glazed bacon on the app menu. How could you go wrong!