Last year, it was reported that, according to the market research firm Information Resources, Americans buy nearly $500 million worth of Reese's and M&M's. According to USA Today, Reese's are the most popular Halloween candy based on sales, followed by M&M's, Snickers, Hershey's and Kit Kats. According to the National Confectioners Association, 35 million pounds of candy corn are produced each year.