If you go by VGChartz, and include remakes, it looks like this:
1. Ocarina of Time - 11.38 million
2. Twilight Princess - 8.75 million
3. Wind Waker - 6.03 million
4. Majora's Mask - 5.23 million
5. Skyward Sword - 3.96 million
Although without remakes, the order would be Twilight Princess, Ocarina of Time, Wind Waker, Skyward Sword, Majora's Mask.
Including remakes it a bit unfair, because 2/5 of the games have not had a remake (Except Twilight Princess HD is coming soon)
Can't wait for The Zelder Scrolls 3: Breath of The Wild Hunt!