Place oil in large skillet - I use a cast iron dutch oven. Add chicken, peppers, onions and celery, salt and pepper. Cook over medium heat for 10-15 minutes, stirring and separating as it cooks. Add beans, tomatoes, water, tomato paste, worcestershire sauce, chili powder,and garlic powder. Bring to a boil. Reduce heat and simmer for 30 minutes. Ladel hot chili into individual bowls: top with grated parmesan and orange cheddar cheese.