I guess I could say Majora's Mask. I still haven't finished it after all those years. :(

Probably none. I usually finish all games under the average completion time (without trying).

Ocarina of Time hands down... (damn water temple)

All of them I search everywhere if a game interest me, I do slow runs

This may be why I don't like overly long and games that have tons of inconsequential side content, what I find on the side is not interesting in those (I look at you UbiSoft games, actually their main quest is usually pretty short, but there is so much wasted potential in their open world).

Oh! I always hear about the Water Temple, but it wasn't difficult (at all) to me. Maybe 3-4 hours the first time. But it was forgettable. Now it is one of the best to me and I love water dungeons after playing this, Lakebed Temple, Great Bay Temple and Ancient Cistern.

I hated looking for the pages in ACIII.

Whats your top 3 dungeons of all the Zelda games? (Assuming you played them all)

I don't know how long REvelations actually was, but it took me months to finish it because I was playing it on and off. And I seriously love the game for being designed that way.

I'm the same, I don't pay all that money to just do the main story. Where's the fun and value in that.

...That's a really long time, dude. I don't think I've ever spent 3 hours in any dungeon in any Zelda game, lol. Water Temple became one of my favorites after they fixed the experience in OoT 3D.