Golden Crossback Arowana originally came from Malaysia, and they are generally considered to breed the best Golden Crossbacks (though esp. Singapore produces some comparable level Golds).
Indonesia on the other hand is well-known for the quality of its Red Arowana. However their Red Tail Golden Arowana are also quite popular and if from a good farm will be good quality fish. Compared to Gold Crossbacks though RTG are less expensive, (usually) not quite as colorful (often more copper colored than gold), and have less (if any) shine/color crossing the back and head. Generally less pearling near the tail fins as well.
As such if money isn't an issue most would prefer to have a Malaysian Gold Crossback instead of an Indonesian RTG. That said some would be happy to have either, they're both cool fish.