I made a list of the pianists I most love, and/or, have most inspired me, for a music forum I am part of, but I thought I should save it here as well...

Argerich
Arrau
Ashkenazy
Bareboim
Brendel
Cherkassky
Cortot
Fischer
Gieseking
Gilels
Goode
Gould
Hamelin
Horowitz
Howard
Katchen
Katsaris
Kissin
Kempff
Kovacevich
Lipatti
Lupu
Michelangeli
Ogdon
Perahia
Pogorelich
Pollini
Richter
Rubinstein
Schnabel
Schiff
Serkin
Sherman
Sofronitsky
Sokolov
Solomon
Uchida
Volodos
Weissenberg
Yudina
Zimerman