Nah, They're all way too new to be of much interest. My view is that the absolute pinnacle of drivetrain development was Campy C-Record with Regina 7 speed freewheel.

I like steel, more steel and then some more steel. A dinosaur, that's me.

That said, I have one bike that is Campy 10 and one Shimano 9 - course they're both steel!!!

Now, if any of 'em were steel and could be converted to downtubes - then we'd be talking!!!!!