Astrotrain is clearly the child only a mother can love, but I'm rather pleased with the look of Blitzwing. Mine just arrived yesterday, and think he looks good in any of his triple-changer modes. I was very disappointed to see that the missiles are non-firing though (or at least are on mine - maybe the spring was left out as a factory error?). Its so tight that I could barely load the missiles, and they won't come out unless I apply serious force. So it then seems strange they'd give you three of them, since you're never going to be able to remove the two that are loaded.
On the lookout for MISB Headmaster Highbrow, Takara or Hasbro. I'm sure I could make you a sweet deal!