Ian Jelf wrote:

I'm finding this an interesting thread as I get to work in both London
and Paris pretty frequently and consider that I know both systems well.

They both have their ups and downs.

The "space trains" on Paris's Line 1 are - I think - magnificent.

I would add Line 14 to that; the same design of stock, but driverless.
It's great fun to sit at the front!

--
John Ray