Newman's Own's caesar and creamy Italian are quite tasty. But i'm just as happy using a homemade dressing of fresh garlic, salt, olive oil, and orange juice or homemade yogurt soup.
Edit: Graduated from Kraft years ago. All of their dressing and sauces suffer from too much harsh vinegar, or too much salt and/or sugar. Newman's Own tends to be heavy on the vinegar as well, but it's flavorful enough to skimp on the amount i use.