lol Come on, Jamie, you cannot compare a 3 series interior to the interiors of the Panamera and A8. Here is a better comparison:
Mercedes C350:
Audi A4:
BMW F30 (M Sport?):
If we're speaking strictly based on preference, I think the C350 has the best interior, no question. The A4 does have the most driver-oriented layout, though. I think the BMW interior just has so many harsh lines and weird angles.
I was hoping that the F30 would be sort of a baby F10, but they went in a completely different direction. The last driver-oriented 3 series was the E46. The E9x kind of stepped away from that, but retained the simplicity.