the performance difference between those cranks are minimal at most. I've been running the "crappy" truvativ touro cranks for about 2 years on a rush hour and they're just fine. I think people don't like the truvativ's because of aesthetics, not because lack of performance.
if i'm worried about performance, i'm going with dura ace. And i'm sure as hell not putting those cranks on a bike i'm riding in the street.