Ad Network Performace Research

Hi everyone,
I am doing a research about the Ad network performance: eCPC, eCPM, Daily traffic (impression), Fillrate, Optimization of Ad networks below:
-Ad Dubplex
-Millennial Media
-Mobile Core

Anyone have used or tested one or more that network, please give me some review. After I finish that research, I will share for everyone seen to be documentary. Thank you so much for your help.