sorry. just not all that into anyone you listed.
im just going to vote for the pianist i find myself actually going out of my way to hear (both live when he tours and passes near me) and on YT and when I look at my recordings I find his name pops up quite a bit.
'general' pianist (i.e not specific to a particular class/composer) my vote is for:
emanuel ax.
im actually quite shocked he is not mentioned more around the board w regard to exceptional pianists/playing. but then again i tend to like many of those note all that 'in vogue' i.e. andre watts, and several othe cats from the 'generation' i think many of these pianists are at that pinnacle of playing that is achieved when uncommon virtuosity, incredible training, and what can only come from decades of experience, they are 'seasoned' and 'seasoned well' i might add.
then there's kapustin. though generally tought of more from a 'composer' perspective, when i've seen the rare video of him performing and when i listen to my 'kapustin plays kapustin' album, i am literally in awe manytimes. like mouth open/agape awe. he is that incredible.
i'm also very much i love with gordon fergus-thompson's chopin and scriabin
i.e
https://vimeo.com/26250109though the question is probably more fair is asked what are favorite musicians by genre or class/type of music, that is a favorite interpreter of baroque, or modern music?
i.e. there are some pianists we can't really gauge on their ability (or maybe can at least see a lack of desire to) play modern works. like this guy, he's pretty freakin awesome here and i never would have heard him/of him if i had not actively seeked this music out
, or even by composer? or what about class like favorite performer of piano plus ensemble? or maybe even more specialized like favforite chamber pianist? etc. i think that might be more fair and probably more interresting if it were not a poll and people actually gave some music reasoning and more than a work or two about why vs. just listing a name, etc.
to further complicate matters what about 'non traditional' genre that are still classical/tona in tradition but not neccessariy part of the mainstream art musc scene?
still it is about as subjective as those post asking about difficulty rankings of a piece, or favorite composer, etc.

and since you did put many 'historical' pianists on your list i was a little taken back that sofrinsky, rubenstein, and cliburn were not on your list. if i vote for or look for 'vintage' recordings, those are usually among my first places to look.
as you can see from my ramblings the more one thinks about this question the more and more complex it can become lol