My take on your list is as follows:
1=most difficult
1)Polonaise in F sharp minor, Op. 44
2)Polonaise in A Flat major, Op. 53
3)Andante Spianato and Grande Plonaise Op. 22
4)Etude No. 4, Op. 10
Of course, each of these compositions is difficult in their own rite, and difficult for different reasons. For example, the etude might be more or less difficult for you depending on your technique. I'd be interested in others' input. Hope this helps!