Between Manchester united and Chelsea, Manchester united is mainly known for their star player. Where as Chelsea is more known for their team game. But now a days many stars also are leaving Manchester united due to diffarent reasons. May be that some are leaving for more money from comparaby small club. And some are going to the better club like real madrid etc.To know more and much vast information check out this site.
http://www.orkut.com/CommTopics.aspx?cmm=2939