This is a difficult one to answer as a number of these options we don't get in the UK and some of those we do get are different (i.e a UK Milky Way isn't the same as what you have in the US).
If I had to choose from the list I'd go M&Ms - only the crispy biscuit version, nothing else.
Otherwise going off list, I'd go Cadburys - Dairy Milk, Wispa, Marvellous Creations - even a Freddo would be better!