It depends on the target audience. For handing out at science fiction conventions, as Eliezer mentions, or for appealing to people with weak and poorly-considered beliefs in the supernatural, the mystical-sounding tone might work, while the Hanson-ish tone might just bore them into ignoring it.

For people who already fancy themselves scientific, rational-minded people the presentation would probably need to be different. i.e., if you wanted to "convert" to carefully considered rationalism a staunch atheist who rejected religion on largely emotional grounds yet thinks they're so much cleverer than those theists.