Just for fun:
1970 Orioles vs. 1976 Reds
1982 Brewers vs. 1993 Phillies - the "Grunge" World Series
And, instead, a World Series between those same Brewers or an NLCS of those same Phillies vs. the 1974 Clean-Cut Steve Garvey Republican (old type Republican of course) Dodgers
1969 Mets vs. 1927 Yankees
1998 Yankees vs. 1986 Mets
1982 Brewers vs. 1934 Gashouse Gang Cardinals
1941 Red Sox vs. 1948 Cardinals - Musial vs. Williams at each's best (I cheated here, as neither the '41 Sox nor the '48 Cards made it to the Series, but hey' it's my list).
1953 Dodgers vs. 1961 Yankees
1963 Dodgers vs. 1927 Yankees
1976 Yankees vs. 1998 Padres
1929 Athletics vs. 1934 Cardinals
1929 Athletics vs. 1986 Mets
1972, 3 or 4 As vs. 1967 Cardinals, and/or 1962 Giants
1962 Giants vs. 1968 Tigers
1936 Yankees vs. 1976 Reds
1975 Red Sox vs. 1957 Braves
1905 Giants vs. 1963 Dodgers - would ANYONE score a run?
1924 Senators vs. 1991 Twins - Walter Johnson and Jack Morris pitching into extra innings...
1980 Phillies vs. 1996 Yankees - more great players toward their last hurrahs proportionally I think than any other matchup.
What would be some of your favorites to see or imagine?