I think if I had to pick one candy that is known all over the globe and is beloved by everyone would have to be m and ms. They come in the best variations regular chocolate, peanut filled, peanut BUTTER filled, pretzels, crunchy and on and on. The colors are always so perfectly vibrant and they sometimes will add new ones. I remember when blue ones first came out, they were incredibly rare at first with only one or two in every couple of thousand pieces as part of the promotion then they became an official color. This was when they created the talking candy characters too which made them an even more recognizable brand around the world.