I don't understand the word objective in this context, so I am skipping the first question.
#2!. Personally I hate the word debating. I like the word wrestle. Either way, I think it's important in terms of learning and growth. It's just a really touchy thing, though. Because our relationships with God are personal, I don't believe there is a "right" or "wrong" answer for some theological points (but now I am realizing I don't know what you mean by theological points). We all get to know God in many different ways. We all see God differently, even if we are taught by the same people and study the same Scriptures. He is too big for us to ever begin to comprehend. So of course we are all going to be discovering different aspects of him. Because of that, I believe there are parts of him that don't make sense to us when mentioned by others because that's not something we're meant to understand, if that makes sense?
For example, my friend Krystin whom I LOVE and who encourages me SO MUCH was telling me of a youth pastor friend of hers who lost his wife to cancer and never got over it and a few years later killed himself. Krystin wrote to me about how she was CONFIDENT that he was resting in the arms of God.
Do I believe God is merciful? Absolutely. However, I cannot say without causing my heart to be troubled that if a believer commits suicide, they for sure go to Heaven. It will do nobody any good to try and convince me of one way or another; this uncertainty and fear of the possibility of eternity without God is the only thing that has kept me from suicide attempts.
I hope this example explains my point.
#3. I don't think the Bible is enough. the Bible, without prayer and the Spirit, is just a book full of words. A lot of what I know about the Lord can't necessarily be backed up by a Scripture (though I'm sure I could find something) because it's what I gained through experience with Him. So really, no. I don't think the Bible tells us everything we need to know. What would be the point of a relationship with God, were it not to offer us a deeper understanding of who he is?
In general, I think God gives us as much as we can handle on the earth. Think about how Moses couldn't even see God. God had to cover his face, walk in front of him, and then Moses could see his glory. In that same way.. I don't think God allows us to see all of him, because we can't handle that here. We are limited in our physical being and our mental being and even to some extent, our spiritual being.. not because he wants to withhold himself from us or doesn't love us enough to let us get all of him - but because we couldn't handle it.
Think about how we have such a hard time with paradox. Three in One. God and man. Completely merciful and completely just. Patient and revengeful. We don't even really truly understand the majority of what he's given us. One day when we are with him, restored to perfection BY Perfection.. that will all be revealed to us.