
Incredible Hercules #134 cover by Rafael Alberquerque. He also drew a great Gorilla Grodd cover.

Mighty Avengers #29 cover by Marko Djurdjevic.

Wolverine First Class #19 by Skottie Young.
You can see the rest of the Marvel Comics solicitations for September 2009 here. And you can see the DC September 2009 solicitations here. I didn't see any worth highlighting.
*Previously: Best August 2009 covers.
*Buy completed build-a-figures at eBay.