In your opinion what causes christians to believe in Jesus

[Sheldon]

To that end, what are - let’s say five - reasons that Christians believe in Jesus, and what caused them to accept those reasons?

You will rarely find someone who believes God is megalomaniacal, sadomasochistic, and capriciously malevolent, as Dawkins alleges, 

Dawkins never alleged anyone believed that, though he did in his book, start with a slightly humorous observation, based on the literal content of the bible, which depicts a deity that is of course precisely like that. 

you will rarely find someone who thinks the God of the bible is merciful and gracious, longsuffering, and abounding in goodness and truth, as the Bible alleges, and is also a militant atheist. 

Lack of belief in a deity is irrelevant to the facts, of the deity the bible imagines and depicts, and it is demonstrably barbarically cruel, capriciously indifferent to suffering, genocidal, and as Dawkins pointed out, megalomaniacal. The first 4 commandments it is alleged to insist its pets use their free will on, are how it expects their adoration...or else. 

For every Christian that says they prayed and were heard, there is an atheist saying they prayed and weren't. 

Where do you pluck these fascinating claims from? News flash for Breezy, atheists don't pray to deities, dear oh dear John. 

There is no objective evidence that intercessory prayer works, and the faithful have had millennia to produce some. I am aware of at least one double blind clinical trial to test its efficacy, on post op heart patient recovery, it failed to demonstrate that prayer had any discernible effect. 

The Christian will say God exists because good has happened to them, 

Post hoc ergo propter hoc fallacy. 

the atheist will say God doesn't exist because evil happened to them. 

Ah, another handy factoid, plucked from wherever you keep these handy straw men claims. A rational person will observe the contradiction in the claim a deity exists that allows ubiquitous suffering, whilst claiming it also has limitless power and knowledge to prevent it. Epicurus debunked this notion of deity, centuries before primitive ignorant humans created the Christian religion offshoot from Judaism.  

In other words, the kind of relationship you have with God spills over into a judgment regarding his existence.

In other words you use sweeping unevidenced claims, to create straw man caricatures of what others think and believe, peppered with irrational arguments, and all the while never troubling us with a shred of objective evidence, that any deity exists or is even possible.

Another news flash for John then, I have the same objective relationship with deities that you do, I just don't pretend subjectively, that one of them is real.