I've been to all of them apart from Mayon Volcano & Banaue so I can't comment on these.

4th. Manila I don't mind Manila - but only for a few days

3rd. Chocolate Hills Worth seeing the once but in all honesty I preferred the tarsiers, Alona Beach and island hopping.

2nd. Taal Lake/Volcano Boracay just pips this into second place but this is well worth the trip. First time I've been on a horse and last, although riding one to the viewpoint to see the volcano is optional, but it is a long walk up a few steep inclines if you choose not to use a horse. Spectacular views across Cavite and Batangas can be witnessed and the trip across the lake is very pleasant.

1st Boracay I just love Puka Beach

What about The Hundred Islands?