Ever been to Paris ? London's transit is fairly bad compared to it. Or to Lyon (which is vaguely SF's size) ?
I have. As of 2010 (before Cuomo's tenure began), New York had unambiguously better public transit overall than Paris, in addition to serving a city with four times the population of Paris.
Cuomo is doing his best to "fix" that, but in 2018, I'd still take NYC over Paris as far as public transit is concerned.