What is the difference?

Here is a complete analysis of the differences.

Not a complete question…no idea of what you are asking from the Header.

right now the main thing is just the hard drive size, all models (even the arcade pack) feature HDMI so my advice, just get yourself a regular pack, i mean, a black xbox is distinguished, but for what price?

I would give an anwser, but looks like there’s nothing else to say.