The question is moot. Christ is the fullness, or completion of creation, because Christ represents the reconciliation of humanity with God. There can be no Christian concept other than one of humanity's full reconciliation with God. Therefore, there can be no Christianity that is centered on "one or the other." There
is no "one or the other." There is only union. That's the gospel that Jesus preached: "Amend your ways, because the kingdom of God has come near."
Your quote here:
God created mankind for His own glory. God created us to enjoy fellowship with Him. In regards to redemption, mankind brings his sin and rebellion as his role. God also choose to use the foolishness of preaching in His plan of salvation. I guess redeemed men become co-labors with God through the power of God. Redeemed Mankind also becomes God's vessel of mercy, for God to pour out His grace to those who believe. Within this amazing act of sacrificial love found in Christ, God is glorified. Therefore, all that God does is for His own glory.
shows a fundamental flaw in your thinking. Look at the highlighted phrase. Sin cannot enter into the stew of creation, because sin is separation
from God and has nothing to do with union
with God -- hence the need for us to amend our lives, now that the kingdom has come near.
The "fall" of humanity was not a fall into evil, but a fall into wisdom. As a result of the "fall," we are made "like God," as Genesis says. What humanity brings to the mix is not sin (which is only a by-product of our gaining of wisdom), but
the potential to become like God. In that way, we glorify God, or express the fullness of God's creation.
When we "die to self," what we're doing is realizing our full potential as having been reconciled to God and become like God. This points us away from the fruit of wisdom that is "human-like," or limited in potential, and toward the fruit of wisdom that is God-like, or unlimited in potential.
There can be no Xy that is either God-centered, Christ-centered, or humanity-centered, because Christ brought reconciliation with God. There can only be a Xy that is
us-centered. In other words, as Dopple said, "love centered," because love is the glue that binds us together.