Verizon. I don't pay for the bill, so I can't advise you on the cost to feature benefit. My phone was free when bought along with my father's, though. With regard to service, they seem to have better reception than anyone else; I can get reception in the building where I work when my boss can't (He has Cingular). As for phones, make SURE you get one that will at least plug into your computer. Going through their website to access your PIXPlace will ruin your day.