I personally never put much weight upon the crucifixion. I see more importance in celebrating his life and acknowledging that he LIVED, not that he died or "sacrificed" Himself. Death is inevitable and martyrdom is incredibly common. Such a life and resurrection are almost inconceivably uncommon.
I don't believe that God actually directly interferes with human existence, "He" merely opens doors. As such, I believe that Jesus could have saved Himself from such a death, but to do so would be against the way God works. Not only that, but it would be selfish of Him, and it would have been selfish of his followers to expect anything but His acceptance of His sentence.
Whenever I hear Christians say "Jesus died for your sins" I want to point out that he really just lived to show us what a life free from sin meant. Would anything but a spectacular death befit such a spectacular life?
Sure, He died. He was executed and endured incredible amounts of physical torment. But He also Lived(with a capital "L"). That to me is the most important part.
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"Honest disagreement is often a good sign of progress."
"Freedom is not worth having if it does not include the freedom to make mistakes."
-Mahatma Gandhi