BoyGeniusReport has compiled network speed test results submitted by AT&T and Verizon customers. The results are a bit surprising.
VERIZON Average download speed, EV-DO Rev. A: 701kbps Median download speed, EV-DO Rev. A: 440kbps Average upload speed, EV-DO Rev. A: 322kbps Median upload speed, EV-DO Rev. A: 286kbps
AT&T Average download speed: 933kbps Median download speed: 840kbps Average upload speed: 180kbps Median upload speed: 215kbps
Unexpectedly, AT&T on average is 33% faster then Verizon when downloading data. This is quite a significant speed advantage; however, if you look at upload speeds you will notice that Verizon performs 79% faster then AT&T.
For those who spend a lot of time browsing online then AT&T clearly wins out. For those who upload a lot of pictures and video perhaps Verizon would be a better choice.
BoyGenius has a more detailed breakdown of the stats which can be found at the link below.
The sad part is, when AT&T updates 3G, the upload speed will be a lot faster than Verizon, but us iPhone 3GS users won't even be able to take advantage of it because Apple didn't upgrade the upload ability on the 3G chip. Way to go Apple!!!