Heat oil in large pot over medium high heat.
Add garlic, onion, bell peppers, sweet potato, and green chilis. Saute for 5-7 minutes, stirring frequently.
Add chili powder, cumin, oregano, garlic powder, paprika, cayenne powder, salt, and back pepper and stir to coat all ingredients with spices.
Add diced tomatoes, black beans, kidney beans, garbanzo beans, corn, and broth (or water.) Bring to boil then reduce heat to simmer. Cook for 30-45 minutes or until chili thickens.
Garnish with favorite toppings and enjoy. Yum!