Using Custom Views allows the Page Builder to use inherent functionality like richer conditional formatting options
4.01-02a – It may be advantageous to use Module Views when the same data layout will be used for more than one Card type (e.g. a grid and a chart)
4.01-02b – Module Views should be used where columns with a certain width are needed
Best Practice article
Understanding Anaplan's UX with Analogies, FAQs and Best Practices
Questions on this topic? See 4.01-02 Use Custom Views in our Planual forum.