Opinions and all, but you are crazy if you think post-WW Zelda games are "mediocre", criticism boils down to nitpicking, the series is just as linear as ever, sans the early 2D entries, and the story is incredibly irrelevant in these games, and even then, saying they are "all the same" is a huge exaggeration. That you want something different, (and probably at the same time not
that different) is another thing entirely.
ShokingAlberto's point is completely valid, the Zelda series is one of the most open and one of the few franchises that actually tries to step outside it's boundaries for real, not just as a marketing point, what other franchise of that caliber would have done what MM, tWW or SS did? they went insane.
I think that at the end to really enjoy Zelda games you have to approach it like if you were a child, not an obsessed, jaded fan that has Zelda's Lullaby as the ringtone in its cellphone. (I do have a Zelda wallpaper in my cellphone, sue me
)