the modules vs the fixture? Ive had both, the modules are cool, but you can't control them or dim them. Plus you'll need to hook up quite a few for your tank. They don't come with fans, and mine would always run super hot.
The AI will give you more options, cool blue/royal blue/ N. white. Pick up a controller for them and you can control each color individually, set up moonlights/matched up with lunar cycle, thunderstorms, set up like 12 different timers. So many options.
You can't compare the 2.
If your talking about the Panorama Pro Fixture Id still go with the AI. Those Pro fixtures give out a dizzying digital shimmer like no other. Although they have a dimmer/controller also, Ive never seen/used it. Reef Culture has them over their frag tanks, and they are not impressive.
SEA has an AI in, see if they can show you that one. Only downside is they don't have a controller for it, so you can't really see just how customizable it is.