ICAAC hands down. Landing a job abroad is easier for someone who graduated from ICAAC than someone who did from PSCA.
Many schools from abroad are still presently applying for recognition from the UK's CIty and Guilds. A City and Guilds Qualification is recognized internationally and ICAAC is the only culinary institute in the Philippines as far as I know that offers this. The rest have only the more common TESDA certificates to offer.
Foreign hotels/restaurants also hold regular job interviews at ICAAC. They are also known to personally help their graduates secure internships abroad.