If I were there and I had the ability to successfully prevent the crucifixion of Jesus, I would…
Assume that if you could prevent the crucifixion you would not be harmed by anyone in anyway neither in the process nor as a result.
Think about it… If Jesus had not been crucified (assuming for the moment that there was a Jesus) what would the world be like? If you had the ability to save his life, would you exercise the ability?
Yes, I would save Jesus. I’d go back in time twice. The first time would be to gather the blood of the spear that skewed through his body, head back to my space ship & clone him. Then I’d go back in time to a point where I could be the intermeditary who brings Jesus in for crucificxion, while I have his clone with me there & simply swap places with him.
I would let him die.
He wanted to.
Jesus may have chosen death because his people demanded it, but his death was still an injustice that, by Jesus’ own mouth, transpired in the absence of God…
There was no love that day, and Jesus rightly says “My God, why have you forsaken me?”
So I would emphatically say yes, I would show love and save him. No reason(s) could justify allowing the suffering and death of an innocent… If I had the ability and did nothing, I’d be no different from, for example, the Levite and priest who pass by the ruined man (and who the Samaritan eventually helps).
If you consider an innocent AND suffering cancer patient, your statement kinda falls apart. Does the degree of innocence or the degree of suffering tip the scale either way? Or is it just a rule: don’t kill, period?
If it were known that Jesus was really god (or whatever you want to call it) I’d let him die too. God sent his son, which was really him, down to earth so that he could die and go back and live with himself. He sacrificed himself too himself. Even if god and jesus are separate entities, if jesus was god like, how could a crucifixion be a bad thing? HE"S GOD!
However if he was not “god”, and just a man, then i’d save him. I wouldn’t break an appointment though; I’d have to already be free.
Why not?
Rule 110-- Thank you for the thought provoking question in some ways related to the recent one about Jesus and suicide. It reminds me of the dilemma posed by Kierkegaard in “Fear and Trembling.” Does soteriology require a teleological suspension of the ethical? Can God’s sacrifice of His son be considered “good” even though, ethically, human sacrifice is unacceptable? Is there an absolute duty to God beyond that which is ethical? Did Jesus relinquish everything, trusting that he would receive it all back and more based on faith in God? Such a faith is contradictory to reason itself. Jesus’ faith is what separates him from being a suicide.
But what of us? Would we be able to stand by and not save Jesus if it was in our power? Only possessing the same faith as Jesus would make the decision to let him die acceptable. Lacking that, I would like to think that I would have acted to stop the execution as Peter attempted to do in the garden of Gethsemane. However, if Peter or I succeeded, we would have prevented the redemption of the world. 
Yes, I would have stopped it if I’d had the power, on ethical grounds alone. Not having a corrupted Christianity (Paulism) and possibly not even Islam, would be gravy–especially since the Jews, being more thoughtful on religious matters and left to their own un-persecuted devices, might well have come up with a more reasonable religion/philosophy.
Only if he asked politely.
like mandatory suicide…
I still wouldn’t save him.
He wanted to die.
Assuming Jesus to be a mere man (for if he was divine, the entire premise is pointless):
If I were to save Jesus, how much longer would he have lived?
He would have eventually gotten himself killed again.
He wanted to die and was religiously fascinated with the idea.
Many of his recorded discussions were preparatory conversations to make it easy to accept death of the human body.
Word.
Then I would market a “Jesus Abs” home workout video and make millions of shekels.
Nowhere in the New Testament does it say that Jesus wanted to die. According to the Gospel of John, Jesus prayed “Let this cup pass from me” referring to the crucifixion immediately before he was arrested. Believing that he was acting in obediance to God’s will is not the same as wanting to die.
Would this affect the Easter long weekend? Then, no. And just think what would happen to the chocolate industry?
You should really be asking what WOULD’T happen to the chocolate industry.
I’d save him, then rape him. 
Yes but you’d rape your own mother if you had a dick.
If Jesus was divine, then Jesus chose to die.
If Jesus was but a man, then he was surely not a great fool, and as such, knew full well of the consequence of his actions and choices, to include not running away or fighting the guards who came to gather him.
Either way, he chose to accept death; at this point, Jesus wanted to die.
Not wishing to die, but obeying a divine providence’s order to die is still, in effect, wanting to die.
He didn’t want or expect that he would die. He, as the monarchical messiah along with John the Baptizer, the priest messiah half of the duo, expected God would come to their aid in their efforts to remove the corrupt Sanhedrin and re-establish the Kingdom of God. Yet he continued even after John’s execution, leading a band of followers in the cleansing of the temple–for which the Sanhedrin got him executed. The Bible gets it right quoting Jesus, “My God, my God, why hast thou forsaken me?” He was so blind with faith, he couldn’t realize until he was almost dead that God wasn’t even going to help the messiahs “prophesied” in Daniel.
2000 years later and we still haven’t learned that lesson.
If he didn’t know he would die, then we can cross omniscient off the list.
If he was god, and did not want to die, then all-powerful gets crossed off too.