Yes I look. I look at a realaxing, well ordered C-Class, and aty a complex A4 or A5.
You have lots of little black buttons everywhere for the climate, and lots of buttons everywhere (some round, some edgy, with no order, seemingly put here without design) around the gearlevel.
No coherence here, at all. No harmony, no order.
The big "empty" black plastic piece under the screen is awful and brakes the design of the center console. The center eaters are here, you don't know why. They had no other place? The heater near the door are high, the center heaters are much lower..
The dash does not flow with the doors like the Mercedes.
Also the "little"edgy screen in the too big curvy place and with curvy heaters under it...Under it and with a different size, so that the screenplace does not flow with the center heaters. They are just placed here the one under the other, without care...
The C-Class is much better from thos point of view, it relaxes you, is very clear and ergonomic.
On the other hand, I can't say the interior in the C-Class is wonderful. The center console is a bitt dull and little, I don't like the heaters, and the dash is too much "one big piece of plastic".
But in real life you feel realy good in the C-Class, realxing, ergonomic and much better looking than in pics.
I don't think it is the case forthe Audi. It is not as relaxing, much less ergonomic with all these buttons (the climate controls are easy to use in the Merc, with few clearly separated buttons, whereas on the Audi...).
And I sat in the A6, it is complex and unsatisfying for me.
I prefer Mercedes' clarity, coherence and harmony, even if it looks a bit spartan especially in black (the black/grey is much much much better).
Of course this is just my opinion, my view of a car. i don't say the A4/A5 has a bad interior, but I much prefer the one in the C-Class.