I guess it all depends on where you are I guess. Ive had att for 12 years here in Atlanta Georgia, and never had any issues with bad service or dropped calls. I tried Verizon and they had the ABSOLUTE WORST customer service, and quite a few dropped calls. I was tempted with Sprint since they have a strong 4g network, but their call clarity sucks. I almost went with an Iphone4, since I use my ipod SO much I figured why not. That way I'd only be carrying ONE device. But I decided to wait until March 1 when att rolls out their 4g and try that. Currently I am having some issues with my Blackberry Bold, but that is due to the latest update Bberry rolled out.
Besides, once all the Iphone users dump and leave att to goto Verizon, it will free up a lot of att's bandwidth issues and then people will start *****in about Verizon. It's all relative really.