I personally have only seen the Royal Oak Carbon Concept Tourbillon and Chronograph. I saw it here in my native San Francisco many months ago. While I liked the watch and I thought it was very interesting, I did not love it nearly as much as I loved the Concept One Royal Oak that debuted many years ago. I personally was not impressed with the way it told the time of the chronograph with the "lit" dots. The only thing that I found to be very interesting was the green shock absorber inside the watch (if my memory serves me correctly). All in all, I liked it, but didn't lose sleep over it, it just made me think of the original Concept One Royal Oak.
As for the Millenary Carbon One Tourbillon, I have not seen this watch in person, so I can comment little upon it. But I believe I would like it even less than the Carbon Concept Royal Oak.
Audemars Piguet is one of my absolutely top favorite brands and I do like a wide variety of APs; from the most outspoken Royal Oak Offshore models (the Survivor and Grand Prix are my favorites) to the classic Jules Audemars models(current favorite being the AP Chronometer with AP escapement) and Edward Piguet models.
I'd recommend perhaps the hand wound Jules Audemars minute repeater, tourbillon, and chronograph skeleton watch in platinum, or the hand-wound skeleton tourbillon chronograph with small seconds at 9 o'clock and 30 minute counter at 3 o'clock in platinum as alternatives. But these are much more classic in appearance, whereas the two watches you mentioned are much bolder watches with a certain younger and more fun attitude.