In a large skillet, heat the olive oil over medium heat. Season the chicken breasts with chili powder, garlic powder, cumin, salt, and pepper. Add the chicken to the skillet and cook for about 6-7 minutes on each side, or until the internal temperature reaches 165°F. Remove from the skillet and let it rest for a few minutes before slicing.
In the same skillet, add the corn and cook for about 3-4 minutes until heated through and slightly charred. Remove from heat.
In a small bowl, mix together the mayonnaise and lime juice to create a creamy sauce.
To assemble the bowls, divide the cooked rice among four bowls. Top each with sliced chicken, charred corn, a drizzle of the creamy sauce, crumbled cotija cheese, and chopped cilantro. Add avocado slices on top.
Serve with lime wedges on the side for an extra burst of flavor.