These are commonly used interchangeably, and the distinction between them is a small one. "Comparison to" should be used when comparison is made between specific people, things, or other instances....
Brightness refers to how bright the shadows are and contrast refers to how bright the highlights are. So, for example, if you had a dark rectangle and a light rectangle on the screen, the brightness...
In attempted meaning, they are the same. However, "between you and I" is not grammatically correct, whereas "between you and me" is grammatically correct. The pronoun "I" can never be the object of a...