Sprint PCS -
Avoid Nokia 51xx series - these phones generally suck
Qualcomm 2700 - INCREDIBLY solid, but a great OLDER phone
Qualcomm 1920/2760 Single/Dual Band "Thin" phone - Again these RULE My roomie has one + loves it.
Samsung 3500 - Described as awesome in every way. Battery, menus, everything. My sister's boyfriend has one and loves it.
Samsung 8500 - a friend of mine had one of the 7xxx Startacs for PCS and switched to this phone - loves it, says he'd never buy a Startac again.
Hope that helps.
If money was no issue I'd go for a Sumsung 8500. Otherwise a Samsung 3500 or a Qualcomm 1920/2760 Thin Phone.
peace
-D