If you don't mind,I'd like to say I love nearly all of Western 'junk foods' in addition to ‘辣子鸡’、‘宫保鸡丁’、‘糖醋排条’ in Chinese cuisines.
I have talked to some net friends from Beijing, they recommend "北京烤鴨", it's a good try for visitors. But according to them, the locals are not interested in that meal.
Beijing Duck is top delicious Chinese cuisine and Japs are feasting it very much,seeing from one of Hanazawa Kana's songs LOL.