There was a study done by the Brooking's Institute that tried to rank the effectiveness of over 300 public transit systems in 100 metropolitan areas of the United States. Sole criteria was getting to work in 90 minutes or less by public transit (safety, cleanliness, airport access were not considered).
Philadelphia ranked #49/100, while NY/NJ/LI ranked #13/100. Los Angeles was #24, Boston #34, and Honolulu was #1. You can read about the report at their website.
Philadelphia was evaluated based on
Philadelphia-Camden-Wilmington, PA-NJ-DE-MD
Southeastern Pennsylvania Transportation Authority
Delaware Transit Corporation
Port Authority Transit Corporation
Borough of Pottstown - Pottstown Area Rapid Transit
Cecil County Government Transit
For Philadelphia 100% of city residents, and 69% of suburban working age residents are near to public transport, 41% of jobs in the city and 16% suburban jobs are reachable in 90 minutes or less.Rank #49.
The Boston numbers are 100% city, and 63% suburban near to public transport, and 47% city, 24% suburban jobs are reachable in 90 minutes or less. Rank #34.
The New York numbers are 100% city, and 81% suburban near to public transport, and 49% city, 22% suburban jobs are reachable in 90 minutes or less.Rank #13.
Honolulu evaluation numbers are not possible to achieve by most major cities. There was only a single transit system, and the city is physically constrained by mountains and ocean.
The Boston numbers might be reachable by Philadelphia.