Kingdom of God & The Church

The Kingdom of God phrase occurs more than 100 times in the New Testament. The word Church in some translations only occurs a few times. Jesus seemed to be very interested in things of the Kingdom, and many of his parables highlighted teachings about this 'Kingdom of God'.

Is the Kingdom of God like being in the rule of Christ, being within his reign... (Whatever that actually means)... ?

I ask the question: Is it more important for people to come into the Church or into the Kingdom of God?

Let me know your thoughts. The Kingdom of God seems to be quite confusing to understand, but it definitely has distinctions to the church itself.