I do believe that the only way to heaven or ultimate reality is through Jesus, but I also believe that Jesus is Love, or the perfect expression of love. I know that a lot of people will disagree with me, but I believe that it is possible to accept Jesus without necessarily making a statement of faith, or following a strict traditional Christian doctrine, but by having the love of Christ for others, and crucifying your own selfish, sinful nature.
Didn't Jesus say, "Not everyone who says to me, Lord, Lord, will enter the Kingdom of Heaven, but he who does the will of my Father in Heaven"?. In the end, God knows everything. He doesn't need a certain creed or doctrine to tell Him what to do, and isn't bound by one. He knows people's hearts, if they love Him, and if they are sincere. I don't even feel I have the
right to say what God thinks, or who will and won't go to heaven. I just live how God wants
me to live.
Most importantly, I think we will be judged by how we treat others. The thing to worry about most is " What am I doing for others? How can I love as much as God loves me?" - "Judge not, lest you be judged. For the measure you use to judge will be the measure used to judge you", or, "Blessed are the merciful, for they shall obtain mercy".
Too often we get caught up in inventing doctrines and trying to explain God, when we forget the one most important rule:

Love

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25 And behold, a lawyer stood up to put him to the test, saying, “Teacher, what shall I do to inherit eternal life?” 26 He said to him, “What is written in the Law? How do you read it?” 27 And he answered, “You shall love the Lord your God with all your heart and with all your soul and with all your strength and with all your mind, and your neighbor as yourself.” 28 And he said to him, “You have answered correctly; do this, and you will live.”
Anyway, my humble opinion...Hope it helps, and I hope everyone has a great day^ ^.