Credulity vs. Skepticism

The perspective from which we evaluate claims of truth is a major factor in our view of the world. Claims about the existence of (or immediate experience with) extraterrestrials, bigfoot, paranormal abilities, and gods are met with an immediate reaction.

From one side, the credulous accept these claims at face value. On the other hand, skeptics don't believe such claims without evidence.

Is your first reaction to believe such claims, or to ask questions? Which is the better position? Is it better to believe something that isn't true, or to disbelieve some truth? I think this question is critical in determining how we perceive the world aroud us.