實際上李斯特的東西沒有肖邦的難，但是李斯特的東西花兒太多了！聽起來似乎比肖邦的難上好幾倍！李斯特的手能跨13度，這也是一

Your discussions are getting old, and old-fashioned. Liszt and Chopin are no longer discussed nowadays, unless you have something new to contribute. We have worked on Liszt and Chopin for long enough, and everyone knows every piece and every recordings of Liszt and Chopin.
If you really want to start an interesting discussion on piano technique, let's talk about Godowsky or Sorabji! - but then I don't think you'd know anything about them. If you think Liszt 太會加花巧, it means your knowledge of the piano repertoire is really small. Take a look at the three Strauss Metamophorsis by Godowsky and you will see what is 花巧 - they made Liszt look like baby stuffs. And then look at Sorabji (scores available from Sorabji archive in London) - and his music, in turn, makes Godowsky's look easy by comparison. So please stop talking about Chopin and Liszt unless you have something new to contribute.
And by the way, La Campanella is not that difficult. Try the Tannhauser transcription if you really want to talk about difficult Liszt stuffs.
Use Wikipedia if you don't already know who Godowsky or Sorabji are. Don't know if they are available on the Chinese Wiki though.