Cook the Rice:
In a medium saucepan, bring the chicken broth to a boil. Add the rice, soy sauce, sesame oil, and garlic powder. Reduce heat to low, cover, and simmer for 20-25 minutes, until the rice is tender and liquid is absorbed. Fluff with a fork and set aside.
Marinate the Chicken:
In a bowl, whisk together honey, lime juice, grated ginger, salt, and pepper. Add the chicken and toss to coat evenly. Marinate for at least 15 minutes (or up to 2 hours for deeper flavor).
Grill the Chicken:
Preheat a grill or grill pan over medium-high heat. Grill the marinated chicken for 5-6 minutes per side, or until fully cooked and slightly charred. Let the chicken rest for a few minutes, then slice.
Assemble the Stack:
On each plate, layer a generous serving of rice, followed by avocado slices, and top with sliced chicken. Garnish with fresh cilantro and serve with extra lime wedges for a burst of freshness.