Thanks for the comments everyone. I've played through Chopin 25/4 slowly and I've played 10/2 though I felt it was too slow so I discarded it.
I love playing Feux Follets. It's fun, low maintenance, and I don't have to spend hours practicing this. I memorize no1,10,5. It's the 3rd easiest to memorize because it lets you do it effortlessly and painlessly. Having said that, the interpretation is another matter altogether.
TE 2,4,6,7,8,11 take long to learn the notes, hold together and maintain, but easier than Feux Follets on the interpretation side.
Chopin 25/1 just doesn't let have it that easily, at least on the technical side of the coin. The interpretation, I have nothing to say on that.
If anyone here who wants to learn this, I'd learn it because it'll let you memorize painlessly, then after that, get good at the other 11TE. Otherwise, I'd Feux Follets as the last etude to work on.
Now I really see the importance of shaping scales and arpeggios. The Liszt Transcendental Etudes just keep giving more and more.