I quote Jesus;
"Think not that I am come to send peace on earth:I came not to send peace, but a sword"
Matthew 10:34
Now you and I know that taken in context with the rest of Jesus' teachings, this is not a command for His followers to use the sword or to kill unbelievers in His name.
However, just as some people point to verses in the Koran to claim that Islam teaches violence, by the same token others can point to verses in the Bible to claim it teaches violence.
So again, my original point is that attempting to prove to others that Islam is evil and Christianity is good, this is a futile approach which is more likely to polarize people than to win converts.