I would have to say that one of my favourite smells is, surprisingly, swamp mud! That mud that just sits in water all day. Something about it’s foulness makes me like it.
My least favourite smell is rotting apples. While I don’t really hate the smell too much, I’d rather smell swamp mud, y’know?
I’ve always liked swamp mud as well. I think it is mostly just that it brings back good times as a kid. Luckily my parents rarely worried if I got covered in mud searching for frogs or trying to figure out if cattail roots really were a good edible.