Hiya, (noob - today)
I have the Thule 9503, looked at most of the other ones within a reasonable price range. Fits kids bikes, old single pivot sus bikes and various others with wierd frame shapes. I've modded mine slightly to have another mount for a small kids bike.
It does allow you to lean the bikes away from the hatchback, but not quite enough on my little Merc A class. Got mine from Halfrauds for a 100 notes.
Cheers