Agreed RFUS. There is a *higher* tier and Bolt and Phelps are both in it. I can appreciate the swimming of Phelps. I have swam with SEALs, and they are something else in the water, and they are geared to stamina. To see someone like them, go for speed is truly world class.
And I have seen sprinters in real life. Even the high 10, low 11 second guys are just so much faster than they seem on TV.
There are many candidates, but I have to go with Lewis just for the fact that I like him more. Bolt is a laugh as well (his Top Gear interview was a blast). Phelps is a bit wooden outside of the pool (I know, using media appearances as a barometer is just daft, but it is what it is).
I feel sorry for the other athletes who live in these guys shadows. At any other time, guys like Blake would be gold medalists. But they are unfortunate enough to be competing against these completely dominant athletes.