I don't think Christianity is a leap of faith. Christianity is certainly accepted by faith but it is faith based upon reason. Christianity is based upon the bible. The bible claims to be a revelation from God. But how do you know that it is really a revelation from God. There are other Holy books like the Koran and baga-vegida and the Buddhist Holy book. Since all of the Holy books contradict each other abd they all say they are coming from God, the law of non-contradiction says they can't all be true. Logic leaves us only two possibilities:
1)One is true and all the rest are false 2) they're all false(that's got to be considered a logical possibility). That's where reason comes in. You can use reason to determine if one of those holy books has the signature of God. That's why I believe in Christianity. The bible does have the signature of God.
One of those ways is Bible prophecy. The old testament has 333 prophecies about the first coming of Jesus Christ and 456 specific details about his life(all written between 400 and 2000 years before he was born). The 4 gospels in the new testament(Mathew, Mark, Luke & John) tell the story of Jesus. Had those 4 gospel writers chosen to not write their gospels, we could still have re-created the whole life of Christ just from the old testament(all written before he was born). In fact, that is how the christians preached the gospel in the first 20-30 years after the death of Christ. They preached it from the old testament because the new testament had not yet been written. The story of Christ is all there in the Old Testament including some details about His life that are not even mentioned in the New Testament. Man sees history like a person sees the Rose Parade sitting in the stands. The floats that have already gone by him are like the past. The floats in front of him are like the present. The floats still coming are like the future. These prophets in the old testament who wrote about Jesus Christ seemed to be able to see history the way you would see the Rose Parade from a helicopter. They seemed to be able to see the end from the beginning. That tells me that though they were writing these things down the info was not ultimately coming from them but from a higher source because man simply doesn't see history that way. Also, the bible has amazing knowledge about many scientific principals long before these principals were discovered. Seventeen times in the old testament the bible says that God is "stretching the heavens". For thousands of years bible scholar struggled with what that could possibly mean. Then in 1929 Edwin Hubble discovered that the universe was expanding. The bible told us that long ago.
No other religion or Holy Book has this kind of knowledge. All this tells me that these prophets in both the old and new testament were not nutcases but true prophets of God. Prophecy does not exhaust the reasons why the bible has the signature of god but what I said will suffice.
Evolution is also a faith, but it's not a faith based upon reason, it's blind faith. In your brain there are 100 billion neurons. Each one of those neurons(remember, there's 100 billion of them) is connected to 1000 other neurons. That comes out to 100 trillion connections in your brain. These connections send electronic signals(and you can measure the electricity) from one place to another. If part of the brain is damaged and you lose some function that is controlled by that part of the brain, the brain can actually re-wire itself and let other neurons in the undamaged part of the brain take over so that you can get back that function. That's only the connections in the brain, not the rest of the body.
Our bodies also have tons of information in the DNA. You have enough information in your DNA to fill encyclopedia sized books stacked from here to the moon and back 500 times. Do you really think that came about by just random chance........kind of like a monkey typing out the works of Shakespear just by randomly plucking away at the keys?
You need to step back and look at the big picture of what is being claimed by evolution, namely, that the unbelieveable complexity of the human brain(not to mention the rest of the body) is nothing more than re-arranged pond scum. It’s pond scum from the original prebiotic soup re-arranged over billions of years into 100 trillion connections in the brain by luck…..just random chance. Evolution says that dumb mud somehow bootstrapped itself into intelligence over billions of years just by random chance luck. Evolution says that man is just a lump of slime that somehow evolved into rationality. No one came to that conclusion by science. That is just blind faith.