Maybe it's not my favourite route perhaps or the fact we spend half the time inside a tunnel and can't enjoy the scenery of the train. Is this line mostly in tunnels?
I would, liked the bakerloo line. There is also the Paris one I have travelled that would be good. Double decker trains
Welcome I assume you are referring to the Paris metro - it's a very interesting route , one that would be good in TSW2
Lack of scenery means underground is a big no from me, there's loads of other UK train routes without tens of miles of pitch black tunnels which are far more deserving of being represented.