everyone has pretty much shared all the plans.
I like sprint because i dont have to have a contract- last I checked Verizon (the other big one in NJ) forced it on you...
BUT I wanted to throw out for folks who have 'poor coverage' that the phone you get makes a HUGE difference. You'de think in this day and age they would all work good enough- not exactly. I saw a discovery channel show once about the testing guy from verizon and what he does before they allow the model to have their service- its pretty intense- at the time he refused to allow any phone without antennae that could get extended- apparently peeved motorolla off pretty good since they had to redesign a bunch.
I've used cellular/pcs for upwards of 10 years and the Brand you get makes a big difference. When we first switched to Sprint from ATT we thought the service coverage was terrible (back than it WAS new and had plenty of holes- but it also seemed inconsistant- like the bedroom and kitchen having majorly different levels...)- soon after we found by accident that switching brnads of handset made a gigantic difference.
We've used sprint at my company for about 5 years now and have had phones from qualcomm, motorola, samsung, LG, and sanyo. So far sanyo is hands down the best, and qualcom (now qyocera) is the worst. Funny thing is qualcomm invented and owns CDMA (basically the opposite of GSM) which is what verizon and sprint use- so you'de think they made the best- trust me - just not the case. Currently we have sanyo, motorola, and kyocera and side by side in the same place at the same time a sanyo can be perfect, a motorola ok and the kyocera's roaming analog- its amazing the disparity. Never had much luck with the qualcomm(kyocera's) but sprint and verizon are both upgrading their networks with new lucent software to increase data speeds and the kyocera has definately been majorly affected.
So on top of all the plans to wade through do your best to find out about the phones you get. I dont know anyone rating them so i guess best bet is to find a friend who gets great service and buy what they have. I really havent 'experimented' with a couple different models from a 'bad' brand to know if maybe some models just stink- once we get a bad one, we just dont buy that company's stuff anymore- so it may be possible that some qualcomm phones might be good for example (have had 1900's, 2700's, the flat one's, and now the qyocera's with changable faces so I wouldn't try anymore...)