Manchester was one of places I was thinking of when I wrote my first post. It is in essence a fairly simple airport made very complicated by the taxi way designators. I go there on a regular basis and still take the wrong route sometimes, it's a real dogs dinner.
Apart from the fact that it is not standard what is wrong with the LHR system?. There is no such thing as a standard airport and no fancy taxiway lettering system is going to make one, leave it well alone please Mr CAA.