I. Who is Jesus?
When Jesus asks, "Who do you say that I am?", my answer is that He is the Christ, the Tao, the Way, the Ground of All Being, the Ground of my Being, the Being beyond being, the great unfolding of the mystery of the Love of God in flesh and blood. In short, Jesus is Divine.
Now some will see Jesus as fully God and fully human, God in flesh and blood. I can and do agree with this, although I have to confess that I am not quite sure what it means for God to be fully human, or for a human to be fully God, which is why I would avoid using the "fully God, fully human" description. But I hardily affirm Jesus as God-in-flesh, the wonderful, fearful, paradoxical intersection of creation and Creator.
Others will see Jesus as a metaphor for God, a mystical Jewish rabbi who embodied the Love of God for the rest of us, showing us the Way to a deep, abiding relationship with God. And most of these people will not affirm the bodily resurrection of Jesus. I myself do affirm Jesus's resurrection and find myself in personal disagreement with the liberal view of it, although I believe it is possible that I am wrong and that this liberal view still affirms the point I made in the beginning: Jesus incarnates and unfolds the mystery of the Love of God in himself.
Jesus is wisdom from God and a flesh-and-blood source of the Divine. That is the point.
I think we have to be careful that as passionate religious people we continue to respect the Mystery that is called God, to preserve and safeguard its transcendence. This means that we are not dogmatic on our views about what it means for Jesus to be Divine, conservative or liberal. But for those of us who are "Christians," Jesus ought to be a place where we can somehow encounter the Divine through flesh and blood and discover God as personal and transformative while still transcendent.
II. Is Jesus the Only Way? -- A Deconstruction of the Question
I believe that when people ask whether or not Jesus is the only way, which is almost entirely based upon Jesus's (very contextual!) statement in John 14:6, they are working out of a paradigm that is foreign to Jesus. I don't believe this question is possible in a more Jewish paradigm. Here's what mean:
In the traditional paradigm, Jesus is called "the way to heaven." This is means that he is our ticket into paradise, a mechanism for our personal gratification.
In the new/ancient/Jewish paradigm, Jesus is called "the Way" into the kingdom, the Way that life is meant to be lived. The focus is not on going to heaven when you die, but in participating in God's bringing heaven to earth, remarrying them in a great wedding feast. Yes, Jesus is saying that certain other "ways" are false, meaning those of the other self-proclaimed messiahs of his day. Other messiahs and teachers were claiming that the kingdom of God (the marriage of heaven and earth) would come through violence and war and victory over the other, and therefore to participate in this kingdom was to fight for God and land (sound familiar?). But the Way of Jesus was and is to participate in the Kingdom of God through nonviolence, love of enemy, and crucifixion. It is a cruciform way of life, a life lived for the other.
In the new/ancient/Jewish paradigm, Jesus is called "the Way" into the kingdom, the Way that life is meant to be lived. The focus is not on going to heaven when you die, but in participating in God's bringing heaven to earth, remarrying them in a great wedding feast. Yes, Jesus is saying that certain other "ways" are false, meaning those of the other self-proclaimed messiahs of his day. Other messiahs and teachers were claiming that the kingdom of God (the marriage of heaven and earth) would come through violence and war and victory over the other, and therefore to participate in this kingdom was to fight for God and land (sound familiar?). But the Way of Jesus was and is to participate in the Kingdom of God through nonviolence, love of enemy, and crucifixion. It is a cruciform way of life, a life lived for the other.
To follow Jesus is to live this way of life. Think of the beatitudes: they are the ten commandments of the Kingdom of God, what the Apostles call the Law of Liberty or the Law of the Spirit. Let's read ALL of Romans 8:1 again (which is typically clipped short): "There is therefore now no condemnation to them which are in Christ Jesus, who walk not after the flesh, but after the Spirit." Freedom from slavery and condemnation is found in the life of the kingdom, the life of the Spirit which is embodied in the beatitudes and the foremost commandment: love your neighbor as yourself. To live and walk this way is to find freedom in love.
So back to the question: Is Jesus the only way? It's not a way. It's the Way, and Christ incarnates it. It is universal, available to all, and perfectly unfolded in the life of Jesus. Jesus said he is the Way, the Truth, and the Life. So if he's the "only" Way, he's also the "only" Life and "only" Truth, which makes no linguistic sense. Jesus embodies the universal, capital Way, Truth, and Life over and above all others - the universal Tao and Ground and Ultimate Reality that we harmonize ourselves with through the "way" we live.
So then why does Jesus say that no one comes to the father except through him? The answer to this is more contextual. There were many teachers who claimed that they had the keys to knowing God, but the ways of life they taught were contrary to the Way. Think of the Pharisees who taught that you had to clean up your life and live piously in order to be acceptable to God and in order to invite the coming of the kingdom and Messiah. Think of the Essenes who lived out in the desert and refused to engage the "unclean" society of the Other. Think of the zealots who wanted to defeat Rome through a violent uprising. Think of the Herodeans who collaborated with the Roman powers of oppression for money while Jewish peasants were suffering under the weight of Rome. The disciples of Jesus were surrounded by a polyphony of Jewish voices vying for attention. Jesus was claiming that they had all lost the plot, and that in him and in his lifestyle you would find the true Way: eating with sinners, loving enemies, engaging the culture (including Gentiles), standing up for the oppressed, siding with outcasts, helping the poor, etc.
So Jesus incarnates a universal Way, available to all people whether they know his name or not -- for as Paul announced, the Good News has already been proclaimed to every creature under heaven (Col 1:23).