Probably the "Crunchie"
HERSHEY
I say (my opinion) Hershey's milk chocolate. It could be different in different places.
AERO CHOCOLATE BAR!!! It's like super famous.
The most expensive chocolate bar is the 'Fully Loaded Choc Bar' Which Cost £250.39 which is a mix between the most famous chocolate bars. It is found rarely in America and mostly in Mexico but only the richest areas can afford to sell this bar! Imagine paying £250.39 for one chocolate bar the size of a Maltesers box!
The chocolate bar, ice cream
The most popular chocolate bar is the Snickers Bar. Over 2 billion dollars were made over these chocolate covered peanut and caramel stuffed bars. The Kit Kat bar is the most popular wafer bar in the world also... in case you were wondering :)
Hersheys!
Milka
In 1847, the Fry's chocolate factory, located in Union Street, Bristol, England, molded the first ever chocolate bar suitable for widespread consumption. The firm began producing the Fry's Chocolate Cream bar in 1866. Over 220 products were introduced in the following decades, including production of the first chocolate Easter egg in UK in 1873 ! HOPE IT HELPED ! :D
The Snickers Bar.
Milky Way chocolate bar
Snickers