This links to a thread that has links to actual pictures from rooms at Aulani so you can look for yourself.
http://www.disboards.com/showthread.php?t=2907389
Our Ocean view was what I would call an Ocean view - not partial view. It was similar to ocean views I've had at other Hawaii resorts. They are not ocean
front though - ie, nothing else in the view but ocean out the door. You can see the island and other nearby hotels. And depending on which room you are in you will see look down at the pool area. The iffy ocean view rooms IMO are the ones that face the direction of the Marriott (odd numbered rooms in the Waianae Building.
A picture from our 1BR ocean view:
You spend a lot of time outside of the villa and there are plenty of opportunities to see the ocean if you didn't want to risk being unhappy with the view and did book the garden view.