Ah, Qatar Sports Club has won it once (in 2003-04). But otherwise, no other clubs without an 'Al' in it's name has won the event since it's introduction in 1973. Umm Salal was newly promoted two seasons a go and they aren't going for the title, looking at their current form. Neither are Qatar SC. So i stand by what i said, about the power of Al.

QATAR LEAGUE HISTORY

1973/74 : Al-Sadd
1974/75 : no champion
1975/76 : Al-Rayyan
1976/77 : Al-Esteqlal
1977/78 : Al-Rayyan
1978/79 : Al-Sadd
1979/80 : Al-Sadd
1980/81 : Al-Sadd
1981/82 : Al-Sadd
1982/83 : Al-Rayyan
1983/84 : Al-Arabi Sports Club
1984/85 : Al-Rayyan
1985/86 : Al-Arabi Sports Club
1986/87 : Al-Rayyan
1987/88 : Al-Sadd
1988/89 : Al-Sadd
1989/90 : Al-Sadd
1990/91 : Al-Rayyan
1991/92 : Al-Arabi Sports Club
1992/93 : Al-Ittihad (QAT)
1993/94 : Al-Arabi Sports Club
1994/95 : Al-Arabi Sports Club
1995/96 : Al-Rayyan
1996/97 : Al-Arabi Sports Club
1997/98 : Al-Arabi Sports Club
1998/99 : Al-Ittihad (QAT)
1999/2000 : Al-Wakra
2000/01 : Al-Sadd
2001/02 : Al-Wakra
2002/03 : Al-Ittihad (QAT)
2003/04 : Qatar Sports Club
2004/05 : Al-Gharrafa
2005/06 : Al-Sadd
2006/07 : Al-Sadd
2007/08 : Al-Gharrafa