Heat a large skillet over medium heat and add olive oil. Season chicken breasts with chili powder, garlic powder, cumin, salt, and pepper. Cook chicken for 6-7 minutes on each side until golden brown and fully cooked. Let rest and slice into bite-sized pieces.
Cook rice using your preferred method. Fluff with a fork and set aside.
In the same skillet, add corn kernels and cook for 3-4 minutes until heated through and slightly charred. Remove from heat.
In a small bowl, combine mayonnaise, sour cream, feta cheese, cilantro, lime juice, and smoked paprika. Mix until well combined.
Assemble the bowl with a base of rice, topped with sliced chicken, charred corn, and creamy sauce. Add sliced avocado and serve with lime wedges.