Zelda is a very overrated series on the outside, but what baffles me the most is how torn the fanbase is on the inside of things. They all push out the notion that Zelda is the best series, yet they quarrel and all of this other nonsense. I'd like to say as well that they believe every new 3D release to be a gift from God or something of the sort -- they never have questions or concerns for new releases which is ridiculous int he eye of one who just hated the latest release. For an overrated series, Zelda is an oddity.
Next that comes to mind is Call of Duty. Now, I'm not trying to perpetuate stereotypes, but a great deal of the online players of CoD herald every single installment as the best game ever made, yet they turn around and backstab that title when the next title releases. Like the Zelda fanbase, though, they all send the message that CoD is the best, yet they themselves do not truly appreciate the titles they're given. Another oddity, yet still overrated.
And finally, I would like to say...hmm...I don't know, so I won't comment on a third.