 The rivalry was extremely lopsided in favor of Miami during the 1970s, as the Dolphins won all 20 games against the Bills during that decade.Fortunes changed in the 1980s and 1990s when Jim Kelly became the Bills' starting quarterback.Though both teams were extremely dominant during that period, the Bills ultimately held the edge and dominated the Dolphins during their four playoff match-ups in the 1990s, with the Dolphins' only playoff win coming after Kelly's retirement.