I agree with what you're saying... Satan should not have as much prominence as God, that's clear. The focus the conventional teaching has had essentially equates satan and God in the life of the believer. A challenge between the force of evil as represented by Satan, and the force of good as represented by the Holy Spirit.

Clearly, too much credit is given to the tempter and not enough to the temptation. Satan only has power because we are tempted to sin. We only lose when we sin. Satan can't make us lose and God doesn't make us win. God empowers us with the Holy Spirit and Satan whispers temptations, but ultimately we are free moral agents. That is the beauty of practical Christianity. There is an all-powerful diety that allows us to act. There is a powerful, but less powerful tempter that is incapable of forcing us to act. The balance allows for us to freely act and freely love. Ultimately, our actions are our responsibility.