prokofiev | help please

[pianote]

i'm trying to decide on my last blank spot for my repertoire for the upcoming year for mtac panel/ yag etc....
and I'm thinking about using Prokofiev's 3rd sonata in a minor.

is this a good competitive piece? what's the hardest part about this piece? and what other contemporary pieces of this type of difficulty can someone recommend?? and does this fit well with the rest of my repertoire thus far? and for the capmt bartok competition i already know the bartok roumanian dance op.8a no.1... is this a good piece to go alongside that one for the competition?

szymanowski- etude op.4 no.3
bach- aria variations
beethoven- sonata op.110
mendelssohn- fantasy in F# minor, Mvt.1
prokofiev- sonata in a minor?


thanks!