One of the big clues for me that I needed to read the Bible more closely was when Bishop Spong's Rescuing the Bible from Fundamentalism taught me that the nativities were irreconcilably different. I did a graph comparison of the two stories a couple of Christmases ago here. So, let's try a similar technique with the resurrection story.
So, let's start with Mark, which was written first. The story is contained in Mark 16:1-8.
The major points are that the women find a single man dressed in white. They tell no one what they saw, and Christ's ascension is implied by the ending.
The next story is from Luke. Here the women see two men, also dressed in white. They tell the disciples what happened. Jesus appears to two non-disciples on the road to Emmaus. He appears in the flesh to the disciples in Jerusalem. Then there is an ascension, which takes place in Bethany. The story is at Luke 24.
In Matthew 28 the women see an angel. Then Jesus appears to Mary in the Garden, although it is only briefly described. She tells the disciples to meet him in Galilee, which they do. Then the book ends, implying Jesus' ascension.
Finally, we have John. John spends two chapters, 20 & 21, describing Jesus' appearances. In John, no one at the tomb tells them anything. Even Peter sees the empty tomb. However, in the Garden, Jesus appears to Mary. Then he appears three times to the disciples. Twice after they went "home", which I assume is Galilee, and once on the Sea of Galilee. Then John says I he doesn't have time to list all of the appearances Jesus made all over. Again, the ascension is only implied.