Chuuk (Truk) Lagoon - Japanese fleet turning into coral reefs in sheltered atoll with no current. Don't expect much to do on surface breaks.
Palau - Exciting big-current drift diving (just go with the flow), big walls, fish soup and mantas with healthy reefs.
Sipdan/Mabul - Beautiful reefs, even bigger walls, less current, healthy fish population and some macro: if you can get a permit.
Rajah Ampat - Amazing diversity and healthy reefs.
Lembah - one of the best spots in the world for black sand macro (muck diving), but only if you are a photographer
Then, taking a step down in terms of reef health, interest and diversity, to the point of being similar or slightly better than the Caribbean

:
Bali - has some good black sand macro in the north, if you're a photographer. Great holiday spot, but most people don't go there just for the diving.
Bunaken - has some walls, and not much else. Was a letdown relative to above. Main benefit is that's it is on the way to Lembah.
Thailand - Similans and Richelieu are great, but are liveaboards. Day reefs/islands are OK if you're non fussy, like cattle boats and/or have never been exposed to a healthy coral ecosystem: definitely on par with Cozumel.
Philippines - few good macro spots. Anything edible has been cyanided/dynamited unless you're in one of the more remote spots.
GBR - beautiful coral atolls and fish life, but you need to get on a liveaboard to the outer reef and head north.