Oxford City Centre has the most appauling selection of restaurants, aimed in the most part at the middle market. Dominated by two big players, Clinton Pugh (Lemon Tree, Kazbah, Grand Cafe, etc) and Jeremy Mogford (Quod, Gee's, Old Parsonage), there are few really fun, authentic and good value places to eat or drink. You should have a drink at The Bear (hundreds of ties on the walls, and the brewery seems to have been relatively kind with the decor), ice cream at either of George and Davis' cafes, goat curry at the jamaican eathouse on the Cowley Rd and afternoon tea at the old parsonage. I have not been to Gee's for years but might be worth a look, and the Chaing Mai thai always gets talked about.