You've read the gospels probably a hundred times. Are you looking for contradictions when you read them? Probably not. But what if you did.
Right, I do not read looking for contradiction. As a new Christian I usually found dome that appeared to be a contradiction. More study has cleared them all up so far. Most, probably all skeptics when they think they have found a contradiction stop and says, "see I am right." Nothing is eve cleared up that way.
What are the difference in the stories?<<
The only differences is that some gospels contain stories another gospel might not include. That is not a contradiction. Each gospel has a general them that presents Jesus in a different way. Matthew present Him as a king; Mark as a servant; Luke as a man and John as God. The different stories highlight the major them of the gospel.
For example Mark is the only gospel that includes Jesus saying "I came not to be served, but to serve." Phil 2:7 reinforces this by telling us that When Jesus came to earth, He came as a bond-servant.
What is the same?<<
God loves us. Jesus died for us to show God's love is the overriding them of all the Bible. It is hard to find sometimes, but it is there.
Why are there differences? Who is the only person mentioned in all four accounts? Mary. Did anyone ask her, "Hey, what happened?" If they did, and reported the story different, then are they adding or omitting information? Whatever the story was. In one wasn't there an angel or two. In one didn't they woman leave. In another didn't Mary leave and come back with Peter and John and then see saw Jesus? Come on, omitting information is how you're going to explain it?
The information is included. Why is it necessary to include everything in every gospel? Omitting information can't contradict anything.
On the "symbolic" thing, I don't know. That's what the Baha'i Faith says. Are they wrong? Do you believe Jesus rose physically from the dead? If you do then you disagree with the Baha'is... who claim their founder is the return of Christ, in a spiritual, symbolic way. Are they wrong on that too?
IMO any religion that has a non-Biblical view is a false religion. Any religion whose writing contradict the Bible is a false religion. From what I know about Baha'i it has some very good teachings. It has a very moral base, that is good but most religions have some good teachings in them. Most, probably all of Baha'i moral teaching can also be found in the Bible in some form. I highly respect Baha'i, but not enough to join them.