Preheat oven to 350℉ (180℃).
Mix cream cheese, ranch dressing, and sour cream in a large bowl with a hand mixer or a large spoon until fully combined. Scrape the sides of the bowl with a spatula if using the electric mixer.
Toss in the cheddar cheese, hot sauce, Creole seasoning, garlic, Worcestershire sauce, and black pepper. Continue mixing until completely incorporated.
Add the shredded chicken and mix well. I like some chunks of chicken in my dip. Or continue mixing with an electric hand mixer until it shreds completely. Adjust seasonings to taste, and pour it into an 8-inch baking dish.
Bake for 25-30 minutes or until it bubbles along the sides. Top with the crumbled blue cheese.
Serve immediately with tortilla chips, vegetable sticks, crackers, a sliced baguette, or a combination of all the above.