I actually find it much easier to place objects in Skyrim than it was in Oblivion. They still "flop" but not to the same degree that they did in Oblivion.
What I would really like to see is items that cast shadows, making determining depth when placing easier. I don't like how it looks like I am gonna place something in the middle of a table, only to have it fall on the edge and then teeter off onto the floor.