When I listen to Rach 3 I get the message: Lets cram every possible note that we can and still make the piece physically playable and tonal.
Now, nail me on the cross next to counterpoint.
Me thinks there is a slight double standard among pianist. Its okay to hate Bach, and Mozart, but its just plain wierd to not like Liszt and Rachmaninoff.
I thought that the idea was, instead, to see how many contrapuntal lines and dramatic and thematic development we can put together into a cohesive whole that is tonal, beautiful, and powerful.
However, I think the only fair criticisms that can be made are that the piano is of a pronounced bravura type, the orchestra merely accompanies, and it trails on at times.
It's not OK to not like Bach. Mozart is not "OK" either but he gets the hate.
Liszt is absolutely hated in Europe. If you play Liszt in Europe you get kicked out. That's Liszt Hate. Therefore, it's not OK to hate Liszt. See?

Confusing, confused , but respectful,
Daniel