urban light is going to be somewhat contrasty and require a fairly versatile film, able to handle a range of exposures. Delta 400 will provide the least grain and most versatility for exposure in a fast film. TriX would be the classic choice, good exposure latitude and provide some nice edgy prints souped in Rodinal.

Delta 100 is exceptional in either Xtol or Pyrocat-HD, but depending on your camera, you may run into trouble handholding in overcast or heavy shade.