Apparently claiming you have the least dropped calls can get you the most legal papers from the lawyers of the competition. Sprint is suing (subscription required) Cingular over their new ad campaign regarding dropped calls.
This reminds me that the last time I was on the train from Connecticut to Manhattan my phone disconnected 3 or more times. I was using Verizon Wireless by the way. Someone sitting across from me was able to speak the entire way and he was using Cingular.
Perhaps the Cingular network is now better than Verizon. I would love to hear your feedback.