Complex sentence: The teams have met in the playoffs seven times with Montreal winning in 1973,1990,1991, and 1993; while Buffalo came out on top in 1975,1983, and 1998.
Split into simpler sentences: The teams have met in the playoffs seven times with Montreal winning in 1973,1990,1991, and 1993. While Buffalo came out on top in 1975,1983, and 1998.