In looking at the pictures, the Ewa Building Ocean View rooms seem to have a better sunset view than does the Waianae. Is that correct?
Generally speaking, yes.
If so, which would have a better afternoon sun/sunset view?
Again, generally speaking, the Ewa Building Phase 1 (xx50-xx58) and the Ewa Building Long Wing (xx70-xx86) will have afternoon sun and better sunset views.
Ewa Rooms xx04/xx08
These villas are actually in the Waianae Building. Since these villas face toward the south, they will get morning and mid day sun, but no views of sunset.
are these non angled? And is non angled bigger?
In my opinion, there is no difference in the sizes of the angled versus non angled balconies.
All of Waianae's two-bedroom vacation homes have angled balconies. The Ewa Building Long Wing have angled balconies, too. The Ewa Building Phase 1 and Ewa Building Short Wing have non angled balconies.
or
Ewa Long Wing xx72/xx78/xx84
For both I assume higher floor is better but is there a point in the lower floors that are still classified as OV that have more view constraints?
Ocean View villas are no lower than the 6th floor.
Or, if I'm off and Waianae is better for sunset/afternoon sun, is the construction over there an issue?
All of Aulani's announced construction projects are scheduled to be completed by September 2013. Apparently, Aulani is not assigning guests to villas in the Waianae Building while some of the construction is going on. Depending on when you plan on visiting Aulani, the construction may not be an issue.
Thanks!