Yes, Cricket will be one of the best prepaid cell phone services you can get for your daughter. Cricket offers a wide coverage range and better prepaid phone plans than most other options out there. They offer the most comparable service to regular cell phone companies with a prepaid plan.
Cingular's GoPhone is usually a more popular choice, the phone, since it uses GSM technology, caneasily be switched between GSM carriers, should you decide to go with another one. Also their prices are very competitive.