I've had a lot of different types of sate (or satay) in Southeast Asia, but there's nothing that compares to real Indonesian sate; In my opinion you'll find some of the absolute best sate in Asia within Indonesia. in Indonesia you'll find many different types and varieties of sate, but two of the common versions in Jakarta at sate ayam (chicken sate) and sate kambing (goat sate).
One of the common recipes includes the meat marinated in sweet kecap manis soy sauce, before being skewered. I think is the main reason why Indonesian sate is so good, is because the skewers of meat are typically grilled on an extremely hot charcoal fire, so the meat cooks quickly, while leaving it smoky and juicy