Favourite Dungeon

Arbiter's Grounds. Even though it was kind of a rip-off of the OoT Forest Temple, but I care not. It was awesome and I LOVED the boss. Hehe.

Arbiters grounds was the easiest for me but I enjoyed battling all of the undead foes. Stallord was an awesome boss too, the only letdown of that dungeon was the spinner, which was fun at first but after that dungeon you didn't get to use it.

Temple of Time because of the fantastic entrance to it. And the tower of the gods similarity.

I vote Arbiters Grounds. It was just fun to mess around in. And many lols were had when Link was ambushed by invisible rats or those cockroach things XD And yes, hunting down the Poes was a lot of fun (weirdly enough) and the bosses were GREAT!

Don't you think?

I adored using the spinner for the final boss. In fact, I enjoyed all the parts where you had to sue the spinner on those tracks to get around XD

By far the Snowpeak ruins. Snowpeak and it's dungeon was in my opinion the most atmospheric location in the game, helped by the desolate music, as well as the dungeon theme, which, while not the best dungeon music ever, does a good job of creating the appropriate atmosphere.
The fact that the dungeon had its own story gave it a major advantage over most of the others. The idea of two Yeti's living in the house, and the way Yeta casually makes her way to the bedroom with link to get the mirror shard, only to end up being the boss, is excellent, and she is one of the best bosses at that.
Finally, the part when Yeto runs into the room to embrace Yeta is in my opinion the most emotional Majora's Mask-esque scenes in the game, reminding me of the music box house reunion.