We’ll skip over personal opinion and head straight to the data here. Changewave says that AT&T is dropping more calls than ever and more than any of the four big US carriers.
Over 4,000 smartphone users were polled in the survey which had Verizon ranked as first and Sprint and T-Mobile second and third respectively. AT&T, who’ve been announcing and announcing big expenditures on infrastructure, have actually been getting worse month after month. See the graph below: