Candy corn for certain.
Dishonorable mentions go to Milk Duds/Whoppers (same thing, horrible, and worse my parents like them, so they'd be the leftover candy), any of that fake marshmallow crap, and the flavored wax junk. Don't care much for Good & Plenties, Mike & Ikes, and any of the related candies either, though Hot Tamales are okay in small amounts. Don't know what Lemonheads are, but artificially sweetened lemon is absolutely vile, so I'll assume they're more of that and list them here accordingly.
If Necco wafers are what I think they are, then they're just bland and tasteless.
Anything made by Palmer's is terrible too, but their chocolate flavored crap wax is more of an Easter atrocity.
What the hell are Smarties, Almond Joy, Mounds, Werther's, and Twizzlers doing on this list?!