What are the differences in the denominations of the Christian Church?
Unfortunately, the answer is so lengthy that it requires a book. One to consider is the Handbook of Denominations in the United States by Frank Spencer Mead. (Note: the latest editions from the eighth on are revisions by Samuel S. Hill, who authored the book The New Religious-Political Right in America. As a result, the current editions may not have the same perspective as the earlier editions.).