Last time I checked, Jesus was killed by crucifixion, nails applied courtesy of the Roman Army.
This simple fact seems to escape a lot of people. I think the Roman authorities had a lot of influence in which Gospels were accepted and which ones were rejected. By rejecting the Gospel of Judas, the Romans were convenitently able to deflect blame from themselves and onto Judas and the Jews who supposedly demanded Barrabbas be freed, not Jesus. The new view of Judas has the ring of truth to it and makes a lot more sense.
- 1 Corinthians 15:16-22
Whether Jesus asked Judas to betray him or not isn't really relevant. The betrayal had to happen for the Lord's plan to move forward. Before Christ, physical death was final. There was no coming back. His Resurrection changed all that. His Atonement for our sins overcame spiritual death. We could return to live with our Heavenly Father. So, does this knowledge make Judas a hero or a villain? If we are focused on the meaning and importance of the Atonement and the Resurrection, it just doesn't matter.
I blame Constantine.