I don't have major problems with the symphonies. The only exception would be the No. 4 in either version. It's the least memorable and doesn't feel cohesive to my ears. The 6th is growing on me, but I still struggle with the 1st movement.
Favorites: 2, 3 and 5.
I've heard all the ballets except The Flower Stone. Is the Rozhdestvensky recording the one to listen to?