Ever since I've seen Valentina Lisista on youtube, my playing has been heavily influenced by her. I really like how her playing stands out in that it is so articulate, clean, and even, and her fingers so adamant and resolute -- very few pianists are able to achieve this level of clarity. Although some people say her playing sounds "robotic with no emotions or musicality", I totally disagree. I think her "robotic playing" actually made her selective use of rubatos and occasional emotional outbursts even more precious and cherishable, as opposed to some pianists who prefer the "exaggerated rubatos and emotional expressions".
Listen to her play the harp etude, and see how her calmness and mastery takes our breath away. She is expressing something beautiful, portraying something in nature -- the rhythm of flowing water perhaps.
As opposed to Lang Lang, on the other hand, see how his exaggerated rubatos kind of just ruined the piece (Lang Lang fans don't kill me).
His exaggerated musical expressions stopped the "flow of the music" -- you can't really picture a scene of green grass and flowing water in your head. Whereas in Valentina's playing, her purpose and theme is strong and evident to the audience. You can easily picture green grass, flowing water, clouds, and perhaps angels flying everywhere. She is "telling a story" and "giving a meaning" to the piece, and connects to our human emotions. This is true art in my opinion.
So, Valentina is my favorite pianist and I've been following her footsteps (technique/interpretation wise). But I know, I still have a long way before I can even achieve 1% of that level of clarity and articulation. Each of her fingers is just so isolated and independent and strong to the point that it seems humanly impossible to achieve.