An inconvenient fact is, there's no way for you and I to know God without his manifestation. He used all of those mediums to communicate with us, that doesn't mean he IS any of those mediums. I've told you many times with this simple analogy - when you use a phone, Facebook, living recording or this Runningman avatar on CF.net, are you any of those things? Or a real person of flesh and blood? This is neither modalism or pantheism, it's God's divine providence. If you equate the almighty God with his mere manifestations, I can equate you with those mediums as well, maybe you're an AI robot, but apparently you're not, right?
Yes, you can go with the Father, but another inconvenient fact is, the Father is only known as the Father through Jesus the Son, Jesus the Son is the only access to God the Father. God was almost never addressed as Father in the OT, it was always the Lord, LORD God or Lord of hosts, only in the NT was he called our father in heaven. Despite your vehement opposition against the humanization of God, the title "father" is the result of anthropomorphism, a natural human tendency of assigning human physical attributes and characteristics to non-human entities, which include deities. Traditionally, a father figuare is the provider, protecter, counsellor, leader and guardian of the family, you have a close relationship with him, addressing him as father is the easiest way to relate to him. If "God is not a man" is the hill you've determined to die on, then don't call him father, 'cause traditional father figure is the closest human model to God,