(waits patiently for flamewar)
It doesn't make sense for God to talk to himself, make laws for himself, and sire himself. God is our Eternal Father; we take upon ourselves the name of His Only Begotten son, Jesus Christ, when we are baptized; and the Holy Ghost is his own separate being. Three individuals, one purpose.
I am a Methodist and I believe in the Holy Trinity. From the Bible, we can see that God is the Son Jesus Christ, the Father and the Holy Spirit which was sent down to "live" in all of us when Jesus went up to heaven as promised.
Makes the most sense for what is said in the Bible.