Best coverage? Verizon, AT&T, T-Mobile, or Sprint?

First of all, I hope you don't listen to the answer above me, seriously. Don't always believe in ads.

Since I have never been to Philly, I don't know. You should go to each of the carrier's website and look up for the coverage in your area. Determine which carriers have great coverage where you are. That will help you determine the best coverage.

Some things you should know though:

1. Verizon and Sprint can penetrate through buildings better and sometimes you can get a signal in the basement.
2. At&t is slightly better than T-Mobile in building penetration, just slightly.

I live an hour away from Orlando and I can tell you that all carriers have great coverage in that city. Since it is one of the big cities in FL. All you would have to worry about is if you can get coverage in the buildings, but that shouldn't be much of a problem unless you go into basement levels.

DKY

Verizon!

verizon has the best coverage out of all those services nation wide. its like they have extra satellites with crazy pwers. i currently have tmobile and they r ok. but i wanna swtich