I played them both, and i say that too- no.8 is much more difficult. maybe because all the pressure goes on one hand and it really gets tired by the end of the piece. and in the middle there's quite a hard part for the left hand. i dont know why. but it is true, after no.8 the revolutionary is a joke.
Really? Well, do you think that for people with big hands the difference is minimized?
Finally, I disagree with m_langlois that it is silly to rate the etudes in terms of relative difficulty.
Pedaling in 10/8 is much more tricky than in 10/12.
I would disagree with myself as well if that is what I had said. In fact, there are some general levels of complexity within the set, but despite being musically two completely different ideas, 10/8 and 10/12 are difficult according to an individual's weakness, perhaps for one pianist 10/8 is more, and for another, 10/12.Now, what is silly is to say that there is an absolute progression, or an order in which ALL of the études should be studied. There are a few that are a good introduction to Chopin's technical approach, such as 25/1 and 10/1, and some that are better played (10/2, 25/6) once some basic things have been mastered. However, within these larger categories, the difficulty is different for each person. The eighth Chopin étude is not absolutely more difficult than the twelfth, or vice versa.I hope this clarifies what I have said.Best wishes,ML