I have only seen the Racecar in person (my pair) but I wouldn't trade them for both other pairs together (ok, I would but I'd sell both other pairs and buy another Racecar). I just don't get the love for the Sharks or Arrowheads over these. People were right about the FK on these - neither the orange or green weaves are as nice as the MC ID/MP or MM, but this is like their supercharged love child. Probably top 3 for me in my collection.
Even watching the eBay pricing, it seems to be stratifying along CW lines - in my size the cheapest pairs are the black, then the Sharks, then the Racecars, with the obvious oddball pricing.