I love my nextel. But it depends on where you are and your coverage area. I have a place where you can buy phones and look at the comparison's for coverage area's. If you are interested, let me know.
I like my Cingular. But it varies with the Area, in some areas, another company has more and better towers.My phone is an LG-1500, but I prefer motorola. I work in a secure area and could not have a "camera phone".
Alltel by far.Alltel utilizes all of the other major cell companies tower in addition to their own as part of their service, giving you nearly complete coverage wherever you are. I've been with them for years now, and I am very happy with the service.
Rogers and Fido are of the same, (Rogers owns Fido). Not a huge fan of Telus' mobility. Don't know much about Virgin. Bell is pretty good... I would have to say Rogers, or Bell.P.S. She is not from the U.S.. These are Canadian companies she is inquiring about... With the exception of Virgin.CyberNara