Rachel vs. Zenyatta: Which run the better race?

[cmorioles]

I don't have my "Champions" book handy, but didn't Personal Ensign, Seattle Slew, Hallowed Dreams, Cigar, etc. all win a bunch in a row running the same style?

Why are synthetics more fair than dirt? I don't understand why making speed a disadvantage is a fair race.

Imagine if they eliminated the time trials from the Tour de France, the ultimate test in bike racing. Would that make it more fair?