40 ( +1 | -1 ) Don't Forget ... (among others)Steinitz-Zukertort Steinitz-Chigorin Janowski-Marshall (they played four matches in 1905, 1908, 1912 and 1916 and countless games in tournaments) Lasker-Tarrasch Reshewsky-Najdorf (two matches, 1952 and 1953 and countless games in tournaments) Botvinnik-Smyslov (three world championship matches in 1954 - drawn - 1957 - won by Smyslov - and 1958 - won by Botvinnik) (to be continued ...)
29 ( +1 | -1 ) i believe that the Bottvinnik vs Fischer tension makes it the greatest rivalry. Both are quite stubborn and hate every aspect of each other. too bad they only played one game. i favor Bottvinnik, but who knows what the results of a tournament could have been.