Sviatoslav Richter. Greatest pianist of the last century?

It's Alfred Brendel for me.

Affinity for Mozart.

Mozart Piano Concerto Number 21

Even though I agree its Richter, I always loved a Pollini concert at Carnegie Hall.  Always.

He was a great Pianist.  Was he the greatest ever?  It’s a ridiculous notion 

I cast my vote for another Russian, Emil Gilels.  His Beethoven, Schubert, and Chopin performances are unequalled in my opinion.  Many other composer’s too.  I would also mention Alfred Brendel, Murray Perahia, and for Mozart, Mutsiko  Uchida.