I am biased against the supernatural? No. Every time we have an event that is explicable in terms of natural law, we have evidence in favour of natural law and therefore against what we call supernatural. Indeed, its very name is because of the overwhelming number of examples contrary to it. There has never been a miracle which is able to surpass all evidence in favour of physical law.
But don't you see, now you are arguing that even without already believing in Christianity, I should still be concluding the truth of the resurrection? Well, from there the most likely conclusion is indeed Christianity, so in fact you are arguing that the argument from miracles works, even if you don't utilise that claim elsewhere.
You cannot seriously claim that the supernatural and natural explanations lie on the same level. First, the supernatural explanation un-explains everything that was previously explained naturally, because the concept of physical law, cause and effect is now broken. But second, look where it leaves you- you have to admit that every time an apple falls, it is just as probable that there was a supernatural explanation as that it was gravity. Do you even countenance the possibility that the apple falling is caused by some supernatural effect?
"Let's look at the evidence and try to find out what happened."
I have looked at the evidence, indeed, all the evidence. I have looked at the historical evidence, and given it benefit of doubt where I don't know it, and yes, for the sake of argument, let's say that the historical evidence points strongly towards a resurrection. Now let's look at the scientific evidence. The Scientific evidence says to a certainty which is orders of magnitude stronger than the historical evidence that it is impossible. So we must choose the scientific evidence.
If you had to estimate the probability of the testimony being wrong, lets say you put a figure of 1 in a million on it.
Now, I need to show that the odds of somebody being resurrected are lower than 1 in a million.
Looking back over the last few centuries, we can say that approximately 50 billion people have died, and none have been resurrected. If the chances of a ressurection were 1 in a million, that would give a chance of those 50 billion all not being resurrected of 1.928*10^-22000
So I can say, to a significance level of 2*10^-21998 % (and bear in mind that we normally consider significance levels of 1% to be very powerful) that the historical evidence is weaker.
We could go for a bolder claim from your side...1 in a billion. The science still has you beaten to 22 orders of magnitude.
But historical evidence is never so strong as to be 1 in a million against it being wrong, even.... your judgement is just appallingly wrong!