It's not really a proper dungeon, but the Ice Cave from Ocarina of Time is something I have never looked forward too. It is more along the lines of something I dread, as I find it incredibly boring and rather tedious.
Interesting. I think the Ice Cavern is also my least favorite 3D Dungeon, yet I have some difficulty identifying why exactly I dislike it so much. I don't think that there's really any other dungeon in the series that I dread in the same way. Although it isn't that I find it boring or tedious...just that I don't like being in it, save for the last room where you meet up with Sheik. It can't be the ice theme either, because on the other end of the spectrum, I absolutely
loved Snowpeak Ruins in Twilight Princess. Just something about the Ice Cavern has always repelled me...
Oh. Actually no. Although I can appreciate it from a design standpoint, I absolutely couldn't stand Lanayru Mining Facility in Skyward Sword. Although it probably had mostly to do with the music, my temperament turns to seething irritation the moment I step in there, and there's just no precedent of any previous dungeon in the series having turned my mood so sour. I recognize that it's a favorite and that I'm in a minority, but that is where I stand.
::EDIT:: OPINION REVISION. I HATE LANAYRU MINING FACILITY IN SKYWARD SWORD. Not gonna lie, it has 90% to do with the music.....the moment I hear it, I get extremely peeved. ^ ^;;