Manchester United or Chelsea.. Always changes
Manchester Utd and Chelsea are their biggest competition, but their true rival is tottenham
Lamborghini is the main rival for Ferrari.
Their main rival is Manchester United
The main rival of the L.A. Galaxy is Chivas U.S.
The name of Edison's main rival was Nikola Tesla.
Pompey was Caesar's main rival.
The main rival of FC Schalke is Borussia Dortmund.
The main rival now is Alabama. Following that would be Auburn.
main rival now a days would be tigers. but the Indians real rival is the New York Yankees.
The Georgia Bulldogs main rival is the Georgia Tech Yellow Jackets.
Bluto was his main rival.