According to the Official Nintendo Magazine review,  Skyward Sword is easier than Ocarina of Time and Twilight Princess. This is a weird statement for me. To me Ocarina of  Time was one of the most difficult Zelda games and Twilight Princess was one of the easiest. The developers for Skyward Sword have gone of record to say that Skyward Sword may be one of the more difficult Zelda games. I guess we will have to wait and see.

Link