I am dubious of all of those ratings, I read in that past, they they only get a response rate of somewhere between 6-12% return on the surveys they send out and is drawn only from Consumer Reports subscribers. I don't know that it is really representative of the general public.
I have used Verizon, AT&T, Sprint and T-Mobile at one time or another. The only one I would definitely never use again is Sprint. Between the rest of them, I think a lot of the customer service differences is splitting hairs. I have been an AT&T customer the past 4 years, and have had nothing but positive experiences with them, both in the stores and over the phone. I will have no problem re-upping my contract with them when I am ready for a new phone.
I have used Verizon, AT&T, Sprint and T-Mobile at one time or another. The only one I would definitely never use again is Sprint. Between the rest of them, I think a lot of the customer service differences is splitting hairs. I have been an AT&T customer the past 4 years, and have had nothing but positive experiences with them, both in the stores and over the phone. I will have no problem re-upping my contract with them when I am ready for a new phone.