I believed people who weren't Christians today were children of the devil. It breaks my heart now to know I could have believed that. The satan/devil/demons topic is a HUGE misunderstanding of the modern church.
Plus there's 'end time' drama that all actually happened in the 1st century and has nothing to do with us today. Other things like that.
RE: Christians, Atheists, Muslims and everyone else (except agnostics): Are you being intellectually honest?