for jiao zi in Bei Jing, "Filling House", hands down the best I have ever had. all the ayi's, wife and mother-in-law jiao zi can't compare
west off of Chun Xiu Lu, between Gong Ren Ti Yuan Bei Lu and Dong Zhi Men Wai Jie, sort of Shi Zi Po Street / Xin Zhong Street area, back in there -ish
ditu.google.com has pinyin and good maps if you don't use it already
navigate to Beijing, and then you can type in "chun xiu lu" and will take you there, then zoom in a couple clicks to get the pinyin (if you need it like I do)