Oh, boy. Here we go.
All the Kingdom Hearts games, all the Final Fantasy games, all the Call of Duty Games, all the Pokemon Games, World of Warcraft, Kid Icarus, all the Metroid games, all the Megaman games, almost all the Kirby games (excluding Air Ride, I actually like that one), all the Mortal Kombat games, all the Street Fighter games, all the Marvel Vs. Capcom games, all the Castlevania games, ugh, I could go on forever, seriously!
As for individual games? Conker's Bad Fur Day is a good game, sure, but people think it's one of the best games ever because it had the nerve to use severely vulgar language and become incredibly stereotypical. I have to say I hate, hate, hate when people say its the best game ever and are ignorant when it comes to other games.
You know what I also hate? When people say that any of the games I listed aren't overrated. Maybe the gameplay is good (I personally think the gameplay on all these games are terrible.), but that doesn't mean it isn't overrated. The fact of the matter is too many people like it.
Now, Pokemon and Call of Duty.
Ugh.
Every Pokemon game is a rehash of the previous one and so is Call of Duty.
'Nuff said.
If we're talking about systems, too, I hate Playstation. 1, 2, 3, PSP, whatever, all of it, I hate all of it, I can't stand people who like PS3, seriously, all they do is complain about Xbox 360 lovers just because they can't make a decent game that's exclusive to their system.