I got a used AI Prime HD 2 days ago and started using the BRS ab+ setting. I find it very blue and "windexy" but if science says that's the optimal spectrum, then I'm willing to try it out. So far my LS have a positive response with the new light and settings. My current goal is to get the solid purple under-color of my Gigantea back.
Any of these well known lights should work as they all provide the predominately blue wavelengths that the zooxanthellate corals need to promote photosynthesis. Personally, I'm not fond of the 'windex' look as the primary look for the aquarium, either. Good news is that you can just dial in a bit of white (or other warm colors if this array has separate color channels) to suit your taste and the array can still what the corals need to stay healthy.