Arabian Sea area 3,862,000 square km
http://www.britannica.com/EBchecked/...53/Arabian-Sea


Philippine Sea 5 million square km
http://oceana.org/en/explore/marine-...philippine-sea
so it is ranked number 1


another source: 300,000 square kilometers
http://www.nationsencyclopedia.com/g...ilippines.html


South China Sea area 3,685,000 square km
http://www.britannica.com/EBchecked/...outh-China-Sea

i think on 3rd place ..even strange for me ..something fishy