kansuke sucks, period. It is slow and encourages the wrong way to think about how kanji is written.
the last method, skip(?), also sucks. The sample kanji were especially horrible for that method.
components is slightly better, but the organization of the menu is awful. Still a slow way of finding a character, I would only use this if I couldn't count the total number of strokes. Also, mistakes couldn't be erased when the wrong component was clicked. It has potential but its execution in this test is lacking.
strokecount remains the best way to find a character; separating the result list more clearly into bushu would make things easier to find.
If you want to develop a way to help people look up kanji, do it in such a way that encourages them to think about kanji properly. Good habits lead to proper information retention.