Place oven rack in center position then preheat broiler. Cover a baking sheet with foil then arrange sweet pepper halves on top.
In a medium-sized bowl stir together goat cheese, cream cheese, garlic powder, onion powder, salt and pepper until smooth. Add 3/4 of the bacon then stir to combine. Fill pepper halves to the top with the cheese mixture, smoothing the tops with the back of a spoon.
Broil for 3-4 minutes watching very carefully to avoid burning then transfer poppers to a platter and sprinkle with remaining bacon. If cheese doesn't begin to brown within a minute or two, move rack up (you just don't want to overcook the pepper halves.) Serve with sweet chili sauce for dipping.