I guess it depends on what you mean by excellent and average. If excellent just means below average chance of serious health problems, I think I'll take my chamces with average. Now, if you threw in something like superhuman strength, vision, endurance, reflexes, etc, maybe I would take a shorter life that was truly an exceptional experience. Then again, I have to consider that I have kids, and I want to live long enough to see them grow up, and maybe have grandkids. So it's a hard decision.