Good Diet?

I understand that every person needs a custom diet so I don't expect for you to be my miracle curists. My current "diet" is atrocious. It consists of pepsi, pizza, noodles, and assorted canned foods. I also eat ag McDonalds and eat Chinese regularly. I don't currently exercise and deprive my body of sleep consistantly. I naturally have a fast metabolism so I'm not the weight I should be, thank God.

So, to design a good diet, I'll give you so info about myself:

-5' 11"
-184 lbs
-Favorite fruits: apples, banana's, oranges (to a point; gives me ulcers), kiwis, etc.
-I like some meats, but not all. I'm really only concerned about what's healthy
-I understand breads/pastas are Satan.
-I love sodas but the sugar and caffeine are terrible.

Any ideas?