Just in general or are you talking about any specific cuisine?
In general. Overall, Philly food kills NY food. The only advantage NY has is pizza but our pizza is great so not far off.
I've visited all the best pastry shops in NY and Boston for cannoli and not one can hold a candle to Termini.
Sandwiches aren't close either. NY subs are garbage compared to Philly hoagies.
I see signs all over NY saying "Cheesesteak" and not one knows how to make one.
Plus all of our other sandwiches destroy anything NY has to offer. Our roast pork, roast beef, chicken cutlet, meatball, etc. NY can't come close to.
In fact, there was a video posted on YouTube about two friends from NY who opened a sandwich shop copying Philly style sandwiches. It's in Brooklyn. It's still not close even though they spent quite a.lot of time here.
Pizza is the only advantage they have and it's not that big.