Arsenal. Leeds United. Chelsea. Manchester City. All four are teams that maintain fierce rivalries with Manchester United, with the latter having become especially prevalent in recent years as City have become a threatening force in the world of English football once more. Ask most United supporters who their most hated team is, however, and youll likely get one response Liverpool. Throughout the seventies and early eighties, Liverpool, under the successive managerial tenures of Bill Shankly, Bob Paisley and Joe Fagan, were the dominant footballing force of the era, winning four European Cups and a number of league titles to take their total number of victories to eighteen. When Sir Alex took over at United in 1986, the club had just seven to their name. Fast forward twenty five years into his reign and they had nineteen, finally eclipsing their rivals. Liverpool still lead in terms of European successes, however, with five wins to Uniteds three, ensuring that debate between rival supporters over whose team is the greatest will continue for some time yet.