So I've been waiting to post anything about the new season until I watched the new episodes a few times. "Homer The Whopper" was the start of Season 21 for the Simpsons and it felt a little quicker than some recent season's episodes... but considering the episode was written by Seth Rogan it's hard to say if this sets the pace for the season or just says something about Rogan's writing ability. The plot revolved around Comic Book Guy's comic book character "Every Man" who has the ability to take on any comic book character's ability... kind like Sylar on Hero's. The whole thing turned into Homer's weight battle, which has been done numerous times before (King Size Homer), so it would have been nice to see them try something different, but there were enough good jokes packed in to make it feel new and exciting. My favorite part of the episode was the quick cameo by Bongo Comic's own Matt Groening wearing a Simpsons jacket and saying "I'm so rich, I'm so rich".
In case you have yet to watch it, here's a link to the episode on Hulu: http://www.hulu.com/watch/98266/the-simpsons-homer-the-whopper