Every major sports town on the East coast (NY, Bos, Phil, DC and even Balt) were all the same in terms of fans.
I am sure this is the same in other cities around the country (I don't know because these are the Cities that I have lived near)
So don't complain about a certain slice of Boston fans as if they are special only to Boston. You will find the same type of fans elsewhere, but to a worse level (Mets Philly fans)
Fixed it for ya. 
Ha. I'm actually with wdleehi - I hate the Yankees as a team, but I revel in failure for the Metropolitans because their fan base easily tops my list for general annoyance right now. Combine the high-degree baseball illiteracy with the overriding little brother complex surrounding the Yanks (in the bottom of the ninth of a tie game I was at against San Francisco, the fans started a "Yankees suck!" chant because they were scoreboard watching and saw the Yanks go down 1-0 in the middle innings rather than paying attention to their team), and you've got a fan base fiasco. Ugh.
And Chris, agreed all the way about the wave - although I don't even have any tolerance for it at baseball games. Just a nuisance.
-sw
Hahahaha.
As a diehard Cardinals fan - girding himself for a terrible season - anyone who hates the Mets is OK by me, Steve. TP to you.
Terrible fan base, having seen the Mets in both Shea and Busch. Plus, no sense of humor among the players.
Can you imagine Darryl Strawberry flaring up at the rendition of a Coke jingle in the right field bleachers?
As for the wave, it's an abomination. Happens all the time at OU football games. Makes me crazy.