In terms of who has the most minutes, best price, good call quality, wide selection of phones, etc? And why? I'm thinking of getting an line added for my daughter, which company is best for family plans, as well?

check into t-mobile

I use sprint and haven't had any problems. I only have one line though so i cant really tell you about there family plans.

cingular... you rarely loose calls....

Cingular due to their roll over minutes...