Wow, i never heard of BS Zelda, that's so cool! They should release it as a download.
Majora's mask is simply an excellent game. It lacks the epic straightforward story line of OoT, and it's darker and weirder, making it in some ways a less pleasent experience.
On the flip side, it is very unique and extremely well executed. It's a Zelda game that would be outstanding even if it wasn't Zelda. The time travel and passage of time element is really cool. The locales are very imaginitive. Transformation abilities are actually cool and useful - unlike being trapped as a wolf. It's like an odd Zelda daydream, and I think its uniqueness has made it timeless. It's a game that isn't surpassed by sequels, because it is its own unique story. Areas like its snowy mountan zone and water zones are really fun to explore. If you are sick of conventions and want a Zelda that is totally different, this is your game.