Audemars Piguet

a stylish sport-chic watch, relatively simple technically, but easily recognizable from a mile. We know it became a success and got an icon status by now.
Complicated mechanics doesn't add to described above primary aim, on the opposite- it makes the watch bigger and thicker - less stylish I'm my view. As such, it takes from the original design instead of adding to it.
Skeleton, at least, allows for unchanged proportions, and thus I like it better. However, I see it as an interesting play on a theme, while an icon is an icon, and that's why I would go for classic "simple" Jumbo.
BTW, all above-mentioned I would word-to-word repeat for Nautilus. And between RO and Nautilus I prefer RO, as consider it a lot more interesting and stylish. Just my 2c...

I have a slight preference for the BMG jumbo because it highlights many of AP's superlatives in the most classic case.
A) movement finishing
B) ultra thinness
C) materials innovation
It's also extraordinarily light - and this is a game changer for daily wear.
I also don't expect this BMG to be around in the catalogue forever.

Interesting dilemma!
Peter

I like the concept of the open/skeleton dial. 

I am not a huge fan of skeletonized dials.