Because they won the most premierships
They play in the NRL - not the AFL. But they havent won any NRL premierships either.
The South Sydney Rabbitohs and the Sydney Roosters are tied for the most NRL titles, with each team having won a total of 14 premierships.
Which AFL team has won 10 premierships
No Team has. The AFL was born in 1990 and No Team has won 4 since then!! Brisbane has come close playing in 4 Grand finals but only winning 3 (In a row!)! Collingwood is the only Team to win 4 Premierships in a row but that was as a VFL Team! ("THE ONLY" Team worth barracking for, i.m.h.o!) Collingwood has "barrackers", the rest have fans or members! Check Our Club anthem and you'll see why!
In 1998, the Brisbane Broncos won the NRL premiership.
The Wests Tigers have won once and the Balmain Tigers now defunct have won 11 times. As of 2010.
As of May 2011, Essendon and Carlton share the honor of having won the most VFL/AFL Premierships with sixteen apiece.
mount cordial soccer team
The Boston Celtics with 17 Championships.
In 2003 the best team in the NRL won the premiership and that is the Penrith Panthers :D (They will also win the 2010 premiership)
Melbourne has won 12 premierships