After some research, (and answers from this forum), I have decided on Michelin, (run flat), for my C6.  

Question:  Which is better; Pilot Super Sport or Sport RS?

Thanks!

These tires are both excellent choices...  My understanding is that Michelin is no longer making the Super Sports and that the Sport RS is the replacement for the Super Sports.  I do not know anyone who has the Sport RS yet but some Super Sport owners complain about hydroplaning with the Super Sports.  I would go with the Sport RS just because it is a newer design, unless you can a really big discount on a set of Super Sports.