I've had a few Motorolas, a Touchpoint 2200(made for Sprint by Kyocera), one Sony-Ericson T60 series, and my current is a Nokia 6360.
Out of all of them, my Mot Startac and the Touchpoint 2200 were the best. Durable, functional, user friendly, and good range (or at least not noticeably bad range). The Ericson T60whatever had the most awful range, and the damn thing ran in half-duplex half of the time...I took that piece of garbage back and got the Nokia 6360. Not horrible, but definitely not as user friendly as the Moto or Touchpoint phones I had. If I was buying a new phone today, it'd be a Moto, no question.
As for service, in my area Sprint PCS is without a doubt the best as far as quality. The service area isn't as good as Verizon, and their customer service is just plain awful, but they've got a decent online system where you can monkey with your account settings. However, the sound quality was just like that dipshit says on the commercial. As good or better than a land line...which worked great, since I said goodbye to land lines a few years ago. Free LD with family in Wisconsin was just too good to pass up.
SOB