Here's my little review on all the Dungeons in OoT:
1. Inside the Great Deku Tree - Easy, too easy actually. But it was an introduction to Zelda itself, so it's excused.
2. Dodongo's Cavern - Same opinion as the Deku Tree
3. Jabu Jabu's belly - First "real" dungeon in the game, good puzzles, fun boss battles, one qualm though. You get the boomerang for that dungeon only. I loved the boomerang, pretty dissapointed that you only get it for that dungeon.
4. Forest Temple - Fantastic, entertaining, cinematic, perfect. Makes you first realize why this was the 1999 Game of the Year. I loved the amount of rooms in the temple, as well as the object of defeating the poe sisters.
5. Fire Temple - Pretty easy, but not as entertaining as the forest temple. Nothing to brag about, but nothing too easy either.
6. Water Temple - I don't think I even have to say anything....
7. Shadow Temple - Despite the emo overtone, it was entertaining and pretty easy, EXCEPT for Bongo-Bongo. He was honestly the hardest boss I've ever faced in any game. It took me 15 tries the first time, but when I replayed OoT, I pwn'd him on the first try. So I don't want to complain too much.
8. Spirit Temple - My favorite dungeon in the game. It was long, tasking, but doable. I loved the two part concept, tied a lot together. The boss battles were fantastic as well.
9. Ganondorf's Castle - Pretty easy, not really a dungeon, but the final battle was pretty fun.
Overall, this is possibly my favorite game of all time, but Twilight Princess's combat comes very close to it. TP entertained me a lot, but not in the way OoT did. I loved TP because of the sword battles, accompanied by the special moves you learn which makes the game more of an interactive movie than a game, but I'm not saying that's bad. OoT entertained me because of the ways it tied so many things in the game together, like getting the song of storms, showing your Ocarina to the organ grinder as an adult after seeing him as a child. It was a nice "Ah-ha!" moment. Honestly, I'd have to put OoT and TP on the same level.