Coverage in Jersey City

Verizon, AT&T, and Cingular/T-mobile are fine there. I don't know about Sprint or Nextel.

 

Newport has the worst reception ever in the NYC area. For some reason most of the neighborhood is one big dead zone, so it's pretty hard to say who has "good" coverage here.

I have Verizon and get dropped calls around the PATH station area near Washington Blvd and also sometimes when indoors. So, Verizon is only "good" about 75% of the time (although lately since the past week or two, reception has been worse, maybe because of the work that Verizon is doing in NYC).

My Virgin Mobile phone, which uses Sprint's towers, seems to be comparable to my Verizon phone.

The amazing thing that I've seen is that some AT&T Wireless customers can make and receive calls when standing on the PATH train platform at the Newport station. I forgot to ask them if they have GSM or TDMA though, so I'm uncertain if it's only GSM that gets coverage on the platform, or if TDMA works as well.