Heads up guys... With most of the networks if you drop crazy amounts of calls its usually a problem with the phone. The iphone dropping calls like crazy thing started from a problem in New York with towers being overloaded. In test ran all over the network the dropped call percentage was higher, but not by enough to cause a huge difference. 1 GSM tower cannot provide service to as many people as a CDMA tower can. The network people advertise being better when in reality a company like Verizon drops .3 calls less than a company like AT&T. That translates into us believing the hype. You magnify an AT&T drop while ignoring verizon.. or worse, blaming the dropped call on your friend that has AT&T when it was your fault.
What people dont realize is a lot of the "dropped calls" are not actually dropped calls. Its like when people blame the network when the battery is below 2% and doesnt have enough power to hold a call. GSM gives you more options, and is faster while cdma will be more reliable once connected. There is no use is arguing who is better. Its going to be night and day from one person to the next.