Suntec can't be the official name because it is the name for a
commercial group. but i m sure many ppl will still call it Suntec,
just like many ppl calling City Hall Station as Raffles City
Station.
As for calling it Esplanade Station, I agree with ur point. it's
too far. that's why I never like the name of City Hall Station and
Clarke Quay Station.
As for Marymount Station, if there is a more localised name that is
more suitable, in this case, Shunfu, I think it is better to opt
for the latter as the term Marymount could be used for other
stations in the area, if there is any.