15. Baby Ruth
Basically PayDays, but covered in chocolate and paired with the crushing disappointment you feel when the kids don't understand your incessant Goonies references. But hey, keep trying. Nerd.
If they were embedded in a cookie or something, they might be No. 1, but M&Ms are still pretty great on their own. Especially if they're the peanut kind. Or the peanut butter kind. Or the pretzel kind... actually, why don't they make a little bag with all the different flavors inside? That would put it in contention for the top five. Take heed, Mars.
13. Flavored Tootsie Rolls
Go ahead and call this a garbage take, preferably while pelting me with these, the absolute most underrated treat in the bag. These things seem to only exist during Halloween or in your grandma's candy dish but, damn it, they offer the chance to do some great alchemy. Pop a vanilla and an orange in your mouth? Creamsicle. A lemon and a lime? Sprite candy. Eat them all at once? You're a crazy person. We should hang out.
The Heath bar makes you feel like a little British schoolboy with its toffee butteriness, and will make you look like one when your teeth eventually fall out from all the toffee you have lodged in your molars for weeks on end. It's a small price to pay for a brittle little piece of perfection.
Another in the pantheon of candy-based chemistry, Starbursts come in so many flavors, the permutations among flavor combinations are almost endless. Until you get a little pack with two lemons in it -- a cruel twist of fate that happens all too often.