“Far cry from 1980. IMHO Eric Heiden was the greatest US Olympian of all. Nobody dominated a sport like he did.”
Are you forgetting Edwin Moses? Heiden did it in one Olympics, Moses in multiple. UNDEFEATED in his specialty for ELEVEN YEARS!!
http://en.wikipedia.org/wiki/Edwin_Moses
If Moses won the 100, 200, 880 and 10,000 meter events, then I would say he was on par with Eric Heiden.