Okay. Montreal? Chicago? New York?
Obviously, I’m thinking Boston Bruins… 
I hate the Yankees
I hate the SF Giants
I hate Michigan
If it’s the Boston Bruins, then i think that Montreal is the most likely candidate. I have quite a few friends and relatives who are Canadiens fans, and they reserve a special loathing for the Bruins.
The Yankees. People won’t. stop. complaining. about them. I’ve had my fill of grousing, whining, whinging, bitching, complaining, pouting, gloating, taunting, and screaming over the goddamn Yankees.
My favourite NFL team is whoever is playing the Dallas Cowboys. And my favourite baseball team is whoever is playing the Yankees.
Of course, I don’t manage to muster up as much bile as RickJay seems to have for the Leafs, but maybe that’s because I don’t have an inferiority complex. 
You may have a point but what else is there to do in Edmonton besides obsess about the Oilers?
I’m sure a lot of football fans outside of Texas still hate the Cowboys. It’s just that they have been overtaken by New England Patriots for the title of “Most Hated Team.” Incidentally, how much is it going to suck if it’s the Patriots and the Cowboys in the Super Bowl this year? Granted the fans in New England and Texas would eagerly want this match-up but for everyone else, it would be a battle between the two most despised teams in the NFL. It would be a pity that only one team could lose.
I don’t think I’ve actually watched a football game since about 1979, and I can’t call myself a Broncos fan anymore, but I still carry an irrational dislike for the Raiders. Stupid, dirty, wrong team.
And I’m not all that fond of Dallas, either.
My husband’s favorite college football team is whoever is playing Notre Dame.
The God Damn Raiders…
I think I could easily match the vitriol given in the OP. Because I hate everything about them. I hate their trailer trash, just freed from prison fans. I hate that I can’t go anywhere without running into an idiot Raider fan (and they are nearly always, without fail, an idiot.)
The very sight of Al Davis in one of those gaudy Raider Jumpsuits makes me want to vomit until I die.
I am so glad that the game has passed Al Davis by, and yet he remains such a powerful figure in the NFL… nobody has the guts to tell him.
I refuse to pick any Raider affiliate for my fantasy teams so that I can avoid the awkwardness of wanting any Raider to do well.
I loudly cheer when they do badly.
When the Chargers lose… which makes me irrationally angry, my day is brightened to the point of bringing me out of my sports funk when I have found the Raiders lost.
I HATE the Oakland Raiders.
They could obsess about how the Eskimos have missed the play-offs two years in a row… 
Like a lot of people, I hate the New York Yankees. They’re too richs, and it’s not fun seeing them spend more than 3 teams combined. They’re the team that players go to when they want to win a World Series (hi ARod), and they have the arrogance to match that expectation. Really, though, it’s about the money. I guess I’m a Communist.
(note: I know Boston is right on their tails in terms of payroll, but I’ll reserve hatred for #1 only)
Narrrrrrrrrrridge City.
Cousin-shagging scum, who’ve never won anything of note. (The league cup doesn’t count!)
He’s only a poor little budgie
His shirt is all tattered and torn
So we pulled off his wing, and filled the cunt in
And now he won’t sing any more
You know, seeing as the “s” is far from the “h”, I can’t blame this on a typo; I can only conclude that my English is not be very well.
Tennessee Titans.
I am a Jacksonville Jaguar fan, and in 1999, they lost only two games in the regular season to guess who? And after giving Dan Marino and Jimmy Johnson an ass whipping for their going away present in the playoffs (61-7), the Jaguars went up against the blasted Titans again in the AFC title game, and once again those asshats beat them, and kept them out of the Super Bowl. Ever since, every time Tennessee loses, I am a happy camper.
Hah. I climbed over the wall at Portman Road one time… but a policeman saw me and said I had to go back in and watch the remaining 75 minutes.
Did you hear about the Irishman who thought “Ipswich Town” was the name of a football team?
For sale: 11 clockwork clowns, some work better than others, all well oiled, very little use, £10 the lot. Apply I.T.F.C., Portman Road, Ipswich
How many times have you made that joke? (Actually, out of all four divisions, only West Brom have scored more at home this season, so Portman Road is a damn fine place to be 
)
This year? It’s the first time.
OSU.
I hate the way all the players say the are from “THE Ohio State University”. I hate the way every OSU fan acts like a complete and total asshole to anyone from the state of Michigan, and seems to feel everything up to and including actual assault is perfectly ok behavior towards U of M fans, especially the week before and after the game.
Smug and dangerous, what a happy combination.
Even as a lifetime Red Sox fan (don’t worry, mhendo I feel the same about you), I don’t hate the Yankees. I’ll always root against them, but I don’t hate them. My hatred’s reserved for the Mets.
Locally, I hate the Tokyo Giants, for pretty much the same reason that Yankees-haters hate the Yankees: mediocre and over-paid (their budget is more than double the second most expensive team, yet they play middling-quality ball). They had a manager who for years was called “Mr. Baseball” without ever really accomplishing anything as a leader. But most of all, the team is owned by a newspaper and TV network, so they get guaranteed nationwide coverage every single day.
In sumo, I root against Futagoyama-beya, but they’ve since vanished from the landscape.
The Philadelphia Flyers
A classless thug-ridden organization. I hate them. I hate Bobby Clarke.[sup]1[/sup]
I hate them for their disrespectful handling and firing of Roger Neilson when he had his battle with cancer. “We didn’t tell him to go get cancer.”
I hate them for their consistently dirty play this year. Boulerice, Downie, Jones, Hartnell, and Hatcher.
I hate them for their callous handling of Eric Lindros and his concussions.
I hate their ugly-ass uniforms
[sup]1[/sup] See Nagano Olympics and Valery Kharlamov.
Go Leafs
Your choices are yours to make, but this makes no sense to me… Is it all because of Calvin Schiraldi? (NOT Bill Buckner?)
I don’t exactly “hate” the Yankees, but I do enjoy seeing them fail. So much attention (and money) is devoted to them, and expectations that I don’t really care to see them fulfill, that the best entertainment value from them to me is to see a spectacular train wreck. I also resent that my own hometown neighborhood (Flushing) has a LOT of Yankee fans. It’s just wrong, I tells ya!
For a while I really “hated” the Miami Heat of the late 1990s due to their rivalry with the Knicks. The teams were very similar in style and ability, and what I thought of as the best Knicks team I have seen in my lifetime as a fan (the 1997 playoff team) got eliminated in seven games by the Heat due to what I thought was a terrible ruling from the commissioner, essentially banning 3/4 of the team for “getting off the bench” during an altercation for the last 2 games of a 7-game playoff series that the Knicks were leading 3-2.
Now I really despise the Knicks. I hate this team’s composition and how they play, the coach, and the owner… They suck in nearly every facet of the game, while continuing to charge sky-high ticket prices and carrying the biggest payroll in the league. I still love “the laundry” (as Seinfeld puts it) but the sooner this team completely implodes and can start over, the better.