"Total Votes by Round" measures actual votes cast in all rounds, whereas "Overall Favorite" is a separate vote not based on a listener's round-by-round votes. This is why Glass has a slight edge over Bach in the "Overall Favorite" and a different lead in "Overall Smackdown Wins". This seems to suggest that the impact of Glass' music is the surprise of discovery for those who had a preconceived idea about his music.