I voted for Brown Sugar Cinnamon because clearly they are the best, but the fact is, Pop Tarts are the devil. They made that commercial several years ago that began with an alarm going off. Clearly the alarm noise is meant to get your attention, but it's a cheap fvcking way to do it and it makes me mad. Also, I hate the sound of alarms just like every other person in the world. Therefore, I hate Pop-Tarts for using this sound in their commercials. Nike also did an "alarm commercial" about a year ago that ran on ESPN all the time. Never buying another Nike product again.
EDIT: Sh1t. I voted for Brown Sugar Cinnamon instead of FROSTED Brown Sugar Cinnamon. I think it's blasphemy to even have non-frosted Pop-Tarts on the list in the first place, but I just want to be clear that I would have voted for "Frosted" if I had seen it.