I'm sorry, I normally go with the minorities and tend to go against popular opinion but I have to say that this really is no contest. Bohemian Rhapsody is just one of those songs...it's still awesome and ever-changing, mixing things up and inspiring people to this day. It has incredible power to move people, get them involved and unites across many different age groups and tastes in music.
It's infectious, it's contagious, it's just...awesome ^^;