Parramatta - Haven't won since 1986 (24 years), also entered the comp in 1947 and did not win until 1981 (34 years)
Bulldogs - Won in 1938 and 1942 but not again until 1980 (38 years)
Manly - Entered competition 1947, but did not win until 1972 (25 years)
St George - Haven't won since 1979 (31 years)
Souths - Haven't won since 1971 (39 years)
Penrith - Entered competiton 1967, but did not win until 1991 (24 years)
Sharks - Have not won since inception 1967 (43 years)
Balmain - Won in 1969, but not again until 2005 (Wests Tigers) (36 years)
Wests - Won in 1954, but not again until 2005 (Wests Tigers) (51 years)
Roosters - Won in 1975, but not again until 2002 (27 years)
North Sydney Bears - haven't win since 1922
Replies
Melbourne - Haven't won since 2009 (1 year)
Manly - Haven't won since 2008 (2 years)
Gold Coast - Have not won since inception 2007 (3 years)
Brisbane - Haven't won since 2006 (4 years)
Wests Tigers - Haven't won since 2005 (5 years)
Canterbury - Haven't won since 2004 (6 years)
Penrith - Haven't won since 2003 (7 years)
Easts - Haven't won since 2002 (8 years)
Newcastle - Haven't won since 2001 (9 years)
North Queensland - Have not won since inception 1995 (15 years)
New Zealand - Haven't won since inception 1995 (15 years)
Canberra - Haven't won since 1994 (16 years)
Parramatta - Haven't won since 1986 (24 years)
St George - Haven't won since 1979 (31 years)
Souths - Haven't won since 1971 (39 years)
Sharks - Have not won since inception 1967 (43 years)
So we're 13th on the drought ladder, coincidentally its roughly where we sit on the NRL ladder! And yes, I know Melbourne was stripped for last year, but most would still consider them the winner given they didn't hand it to Parra.