There is no real "smoking gun" when it comes to showing the fact of evolution. The fact of evolution comes not with the evidence itself, but from the way creationism has done nothing to help us. The evidence is clear in favor of evolution, and this not just from biology, but from geology as well. Look at what biological evolution has given to us: great advances in genetics and medicine, to name just a few. What has creation given? Nothing. Not only that, but the arguments used in favor of creationism are not in the least bit scientific. Other than the religious, which is a ridiculous argument to base science on in the first place, especially such a flawed and erroneous religion based on a book that can hardly be comprehended, creationists resort to attacks on science, the scientific community, scientists, those who accept the fact of evolution, conspiracy theories, and other such nonsense, which shows that they have no real argument at all. It's things like these that helped lead me from creationism to accepting the fact of evolution. And all this on top of the science. And this while I was still a Christian. After leaving Christianity, I realized just how non-scientific creationism actually was.
But it comes down to this: if you want to believe that a deity created the world using his magical power, fine. But don't try to pass it off as science when there is absolutely no scientific evidence for it, in fact, the science speaks against it. Don't try to force it onto people who don't want to believe it, who would rather accept science over faith, and who have no use for faith to begin with. Creationists act as if this is the smoking gun that proves the existence of god, which is far from the case. Even if evolution weren't true, which by now we know is not the case, then that still doesn't prove god or creationism. You can't prove creationism by creating straw men against evolution. But again, this just shows the lengths that creationists will go to to force faith onto people who don't want it or need it.
All I've seen in these debates on creationism vs. evolution on this site is people offering all kinds of evidence for evolution, yet creationists have offered nothing. All they have done is attack evolution, and those who accept it, and use the debate as another means to try to force their faith onto people. This is a desperate act. Science and secularism is pushing forward, precisely because faith is an outdated concept. It's no longer needed. And that's all creationism is, is faith. Nothing more, it's not science, it's not logical, it's not rational, it's just faith. Why not accept Shiva as the creator god? Or Amaterasu? Or Chronos? I hope you see where I'm going with this. It gets old seeing creationists offer no science, no evidence, no nothing whatsoever for their beliefs. We're just supposed to take it on faith, and it's frustrating. You believe in creationism, fine. You want us to believe in it, prove it. No attacks, no straw men, no conspiracy theories, no faith, just science.