Here's my opinion in a (quick and dirty) nutshell:

Majora's Mask = Original

Twilight Princess = Unoriginal.

I love to see new ideas in a series. MM had what I was looking for, TP did not.

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"Twilight Princess; it's 8 times longer than Wind Waker, with an 1/8 of the charm and fun!"

The Return... Of Dr. Octagon!