...the perpetual question.While some may be easier than others the point remains that they are all hard.Which one is easiest is dependent on the individual performer.Even if you can ascertain which is easiest for you, it will still be hard. Just play the one you like most and accept that its going to be a big effort to learn it which ever one it is.
oooh sooo correct!i'd only add that, why would you want to study the 'easiest' one (that is the least challenging to you)? i guess if your goal is to not progress or improve technically or grow musically then yeah look for the one that requires the least amount of work....though i've yet to see how one would not be a better pianist after struggling and overcoming the challenges posed by these works, i have trouble wrapping my head around using 'what will require the least of me' attitude in choosing one of these for repertoire study.
Yes i agree with the fact that in shoudn't pick and easy or unchallenging etude to study but im also aware that alot of the etudes are currently well beyond my level as a pianist and would be far difficult for me to learn right now.