The main thing in my opinion, conccerning the Big 3 sports you mentioned is 
that they have a past, which is followed and compared to, with long-standing 
records and accomplishments. Not that the other sports are boring (rugby is 
far from it) but they have a limited scope, and are therefore not watched by 
the large majority of fans!  Soccer may be changing, but with low scoring 
contests and many different leagues and World organizations, it is somewhat 
hard to follow a team, let alone individuals. 
Shoot I like watching the volleyball and table-tennis matches at times but 
it's hard to get excited about the season coming up like Baseball for 
instance. It's the tradition of the sports that make them great, and 
somethign that changes slowly.
Viva la difference!
--- DLG Pro v1.16g1/DLGMail v2.63
---------------