Favorite non transfroming mask on majora's mask?

Okay on the legend of zelda majora's mask what was your favorite mask that didn't transfromer you? Mine was a tie between the Bunnyhood mask and the Keaton Mask. The Bunnyhood mask made the game easier but the Keaton Mask looked really cool.
What's your's and why?

My favorite two, would have to be a tie between the Bunny Hood Mask, and the Mask of Truth.

You have the mask of truth? I thought you had to restart time right before you got it.