The Legend of Zelda franchise has been around for over 20 years. It was created by Shigeru Miyamoto and released for the Famicom Disk System on February 21, 1986, under the title Zelda no Densetsu: The Hyrule Fantasy. A year and five months later it was finally released in the United Stated for the Nintendo Entertainment System, selling over six million units. There have been fifteen installments in the series, with the newest being Spirit Tracks and the first Wii exclusive Zelda -- Skyward Sword -- releasing next year. While all installments generally received high praise, which are the best ones?