"Creamer" is fake cream. In fact, it can legally be classified as "non-dairy." Go figure!!
1/2 & 1/2 is supposedly half milk and half cream. In reality, it's milk with 10-18% butterfat content. (Whole milk being 3.25% butterfat and heavy cream running from 30-40% butterfat.) So, you can think of it as "light cream."