I've been to one: Angel Road.
I've felt more in danger at Shipley station than most of the suburban London stations, there are plenty of passengers around most London stations, even in the evening.
I can't see why Shipley feels dangerous myself... It's by far one of the more inviting stations in West Yorkshire... well lit, lifts, waiting rooms CCTV, decent ticket office hours and a nice new ticket office in a waiting room...
Frizinghall or Ravensthorpe nearby are pretty uninviting.
Moston and Mills Hill give me very bad vibes too.