I don't really have anything against double jumping in platformers, but I recently realized all my favorites of the genre don't have it, those being Mario, Prince of Persia, and Tomb Raider (Legend Trilogy). I don't think the feature necessarily detracts from a game, but when the ability is present controls tend to feel less responsive, and level design doesn't seem as well thought out. I kind of wonder if this ability gets put in as a crutch when developers didn't necessarily nail the gap distances and control calibration.
Anyway, how do you feel about it? Also, what are some of your favorite platformers?