The Barna Group did a Poll of "Christians" as to their opinions of how the Bible, book of Mormon & Koran stack up against each other--
"When faced with the statement that “the Bible, the Koran and the Book of Mormon are all different expressions of the same spiritual truths,” the group was evenly split between those who accepted the idea (19% agreed strongly, 22% agreed somewhat) and those who rejected it (28% disagreed strongly, 12% disagreed somewhat), while leaving a sizeable portion (20%) undecided."
"When faced with the statement that “the Bible, the Koran and the Book of Mormon are all different expressions of the same spiritual truths,” the group was evenly split between those who accepted the idea (19% agreed strongly, 22% agreed somewhat) and those who rejected it (28% disagreed strongly, 12% disagreed somewhat), while leaving a sizeable portion (20%) undecided."
And many false prophets shall rise,
and shall deceive many.
Matthew 24:11