I'm sure this has been done to death, but I still find it interesting to hear people's take on how comparatively difficult each of the Chopin Preludes and Etudes are. Having played many and worked some on them all, I thought it would be fun to give my take, on a scale of * to *****.
Etude Op.10, No.1: ****
Op.10, No.2: *****
Op.10, No.3: ***
Op.10, No.4: ****1/2
Op.10, No.5: ***
Op.10, No.6: **1/2
Op.10, No.7: ****
Op.10, No.8: ****
Op.10, No.9: ***1/2
Op.10, No.10: ****
Op.10, No.11: ****
Op.10, No.12: ***
Etude Op. 25, No.1: ***
Op. 25, No.2: **1/2
Op. 25, No.3: ****
Op. 25, No.4: *****
Op. 25, No.5: ***1/2
Op. 25, No.6: ****
Op. 25, No.7: ***** (To play it well, I really think so)
Op. 25, No.8: **1/2
Op. 25, No.9: ***1/2
Op. 25, No.10: ****
Op. 25, No.11: *****
Op. 25, No.12: ****
Prelude Op.28, No.1: **1/2
Op.28, No.2: *1/2
Op.28, No.3: **
Op.28, No.4: *
Op.28, No.5: ***
Op.28, No.6: **
Op.28, No.7: *
Op.28, No.8: *****
Op.28, No.9: *1/2
Op.28, No.10: **
Op.28, No.11: **
Op.28, No.12: ****
Op.28, No.13: **
Op.28, No.14: **
Op.28, No.15: *
Op.28, No.16: *****
Op.28, No.17: *** (to play well)
Op.28, No.18: **1/2
Op.28, No.19: *****
Op.28, No.20: *
Op.28, No.21: **
Op.28, No.22: **1/2
Op.28, No.23: ***
Op.28, No.24: ****1/2