I haven't yet listened to all of these pianists yet...
I bet most participants in polls haven't listened to all the people in the poll, but still vote anyway. I think poll participants should be made to say which of the pianists voted on they have actually listened to. (Otherwise certain artists might get a better rating for irrlevant reasons, e.g. they're not on expensive labels, they're better known, etc.)
Here's my rating for the Liszt players that I've heard enough of to talk about:
a. Musically best: Arrau (for depth), Bolet, Horowitz (for being generally moving)
b. Highest levels of hairraising fury: Barere, Berman
c. Most technically perfect: Hamelin, Argerich
d. Best combinations of a+b: Cziffra, Horowitz
e. Most underrated: Jando (esp. his Dante sonata)
It should be noted that I included Berman on the basis of his 50's transcendentals only (I don't have anything else by him except a cassette of him doing the TEs in the 80s live in Australia, where they were nothing like the 50s recordings.)
I almost included:
Freddy Kempf's TEs under b
Hough under a for what he does in slow passages.