Even if there is one true religion (or belief system), that does not necessarily mean the others are "made up" by humans. There are different categories of religions. For example, many religions that are more philosophical in nature have evolved over time and are not necessarily directly "made up" by humans. Of course, there are cults leaders that have made up their own religions, but they are in the minority. Then you have Islam as an example where Mohammad had originally thought that a demonic spirit or the devil gave him the words to write. Assuming that is true, that means it did not come from God or humans.
Now, that leaves us with the one true religion (if it exists) which would have been given by God, but as it was passed down from one generation to another may have been distorted (both intentionally and unintentionally) leading to variations from what God had originally given. Now, if God spoke to His creation at one time, it is also possible He is still speaking to it today. If so, there would be ways to hear His voice. And because this God may operate on a completely different level, it may not be possible to hear His voice scientifically, but spiritually. So, when looking for the evidence of the existence of God, it must be done so through a spiritual paradigm more so than a physical paradigm.
As for which has more soft-evidence, I think the real question is which theory is lacking the necessary evidence to support it. The more details we uncover about evolutionary theory, the more we realize how much is actually missing for it to be true.