Welcome to the forum :flower:
Keep in mind that your choice in BD-R's will have more effect on the burn quality than the burner. Of those three, I would lean towards the 207. You would not be able to perform quality scans with the LG or Pioneer. But you can use a transfer rate test to check your burns for serious problems with them. And watch our thread on BDR-207 results and discussions to learn which media to avoid.