Philadelphia- the "Next Great City;" "Next Borough" status still debated

The Boston Globe has an AP article reporting that:

Magazine names Philly 'Next Great City'

...The nation's largest travel magazine [National Geographic Travel] delves beneath pop culture to reveal the historical, artistic and gastronomic layers of Philadelphia, a place it has christened America's "Next Great City."

"This is a city that has been greatly overlooked," said Keith Bellows, the magazine's editor-in-chief. "It's the last great opportunity for anyone who wants a terrific urban life in the Northeast."

Over a month after Jessica Pressler's talked-about NY Times piece, "Philadelphia Story: The Next Borough," it looks like Philadelphians are still talking about it. Inquirer columnist Al Heavens weighs in:

On the House | Philly's no borough, to New York or otherwise 

I don't think Philadelphia has much chance of becoming New York's sixth borough.

From what I hear, there are at least four boroughs in New York City that sometimes wish they could cut loose from Manhattan. What's more, since Hoboken and Jersey City have become so chic, there's already a sixth borough to be carved out of North Jersey. It's closer, and the language is similar.

Philadelphians don't like New Yorkers. I know that sounds like a generalization, but I think I have enough proof to substantiate the claim.