The comments saying Casey is a one hit wonder because he hasn't won in the lesser categories are simply foolish.
As are the TC comments - ignorant at best.

Casey was always right with Pedrosa - who always had the best bike in the field.
Stoner did exceptionally well considering he never had a competitive bike until 2007.
Remember he put the LCR on pole in his second race, and very nearly won his third race.

Rossi is arguably the greatest rider ever and Stoner - to this point - is the only rider that can take the fight to him.
Last year it was Rossi keeping up with an inferior bike and this year Casey is doing just that.
Anyone who states Rossi is past it or Stoner never had it is a tool.