no question Red Sox Vs. Yankees

In my opinion, the best rivalry is the team with the most history, or at least a LOT of it. Currently, it has to be the Red Sox and Yankees because they fight for 1st and second place for decades. I hate to be biased, but I think it has to be the Yanks and Red Sox.

why is this even really an issue?

Anything but the media driven Sox and Yankees, I'd rather watch the Royals and Pirates.

How about the Rangers and -- oh, never mind.

Rockies - Diamondbacks. I'm getting on the train early.

red sox and yankees for sure because there always good games because neither team ever seems to have a bad year

sox yanks are not the best...east coasters just dont have anything else. You see us folks here on the left coast actually have good beaches, good mountains/snow, more sun, better looking neighbors, not to mention the best pollution in the world (the expensive kind), and California Central Valley Meth export to all you crazies in the East. Giants vs. Dodgers