Which piece of music is the easiest in your opinion?

Well none of them are easy, the Mozart is fast and requires some more advanced techniques and a lot of clarity (I've played it!), I personally don't like the Schumann and I think though it might be the easiest piece of the list because of that it's heard the most and people pick it because it's easier, not a great bet really. Better to play something different, it'll make you stand out. I would recomment the Mozart, not as challenging as the Beethoven or the Brahms but still tricky and a beautiful piece.