Hmm... that's an interesting thought. Maybe there was more significance to the Fierce Deity mask than I thought?
I know. MM was much more epic to me, and it seemed deeper as well. I agree with you here. ^^
I have to say Majora's Mask. I loved OoT, but there were so many aspects of MM that I fell in love with even more.
First off, there was all the masks and especially, the transformations. Even the non-transformation masks tended to have powers or just look cool.
The story is another big thing...