If all six were to have gone to war, yes, it would have been hard for all the countries to claim a section of the South China Sea. Either way China would have come out on top, because of the large resources compared to the other countries involved. Who knows, mostly like the U.S. would have been gotten involved and it would have been more intense. However even though it was big interstate conflict over oil, the first step to getting things resolved between the six countries was in 2011. Since the Declaration of Conduct of Parties in the South China Sea was agreed on all six countries have still talk about other minor issues regarding the South China
If all six were to have gone to war, yes, it would have been hard for all the countries to claim a section of the South China Sea. Either way China would have come out on top, because of the large resources compared to the other countries involved. Who knows, mostly like the U.S. would have been gotten involved and it would have been more intense. However even though it was big interstate conflict over oil, the first step to getting things resolved between the six countries was in 2011. Since the Declaration of Conduct of Parties in the South China Sea was agreed on all six countries have still talk about other minor issues regarding the South China