RCZ-R > TTS. I've always quite liked the RCZ as a car even despite the new face, which some say is better, but I don't. And the RCZ-R should be able to make an impression. Plus the TTS is slightly old now.
I'd take the LaFerrari the most because it's just the one I'm probably most keen on. I'm not really as interested in the P1, and certainly not the 918, which isn't on the power level of the other two. The Aventador is also too far below the others to really do it justice.
I think I'd probably take the Aston though none of them are necessarily ideal for me. 911 isn't exciting enough, F12 is not really comparable to the others at all. The SLS AMG Black is actually pretty terrible, and the Audi Plus isn't a big improvement over the normal one, which I wouldn't choose over the Vantage anyway. The Aston is probably the one I'd fancy most even though it is fundamentally old under the skin.