[bart_spoon]

Not in the US there isn't. And the ones there are are:

1. Expensive

2. Not particularly family friendly

So if you are a high earner with roommates or a partner and no children, you have options. For the remaining 90% of the workforce, it isn't particularly feasible.

[fabianhjr]

Sorry, not in the US but I agree there isn't a single city in the US with great subways.

[bart_spoon]

Same. I used to be impressed by cities like NYC, and then I moved to Japan for a few years and I realized that I'm not sure there is a city in the US that makes the top 5, or possibly top 10, best cities in the world. At least not in terms of livability.