Why so christians put Jesus over God?

I personally believe Jesus to be a messenger of god, nothing more or nothing less. Chrisitians believe Jesus to be God's son, and I can understand their beliefs as a result of his miraculous birth and the many miracles he performed himself. However, logically it seems that God the father should be higher than God the son. Correct me if I'm wrong, but most christians address their prayer to Jesus or God, but implying Jesus as god. Why is this? Isn't the lord supreme and even if he had a son would he not be superior to that son?