Feinberg Piano Sonatas Ranking

[f flat minor]

Would someone be able to enlist all the piano sonatas by Feinberg, ranked in the order of technical difficulty based on your opinions? For now, I'm sure that most people would put 3, 4, 5 and 6 in the top, but I'm clueless about the rest. Thanks in advance.

[fftransform]

#12 is obviously the easiest.  I dunno, #5 is probably one of the easiest, too, along with #1 and #10 tbh.  Maybe #7 is next-easiest, but #7 is a very serious piece interpretively.

4 and 9 are probably the hardest, then 3/6/8 in some order.  #3 is kind of hard to fit in, because it's fairly comparable to some of the later ones in both difficulty and scope, but has those two extra (slow) movements tacked on at the beginning.  So I guess I'd put #2 and #11 in the middle.

Also, a lot of this comes down to what tempo you want to play the passagework movements/sections at, I'm just basing off of what the recs we currently have are - but obviously there aren't deep-seated performance standards for these, so that could definitely alter it.