Well I would argue that CD Jewel cases are the best cases. They’re really slim and short so you can fit a ton more in whatever space you have, plus they’re more rigid and just look and feel nicer. For a while I even debated swapping all of my movies into jewel cases.
I’ve long complained that CD jewel cases are what DVD’s, and now Blu-Rays, should have been in. They even make jewel cases that are half the size of standard cd jewel cases so you can fit two cd/DVD/BR’s in the space of one normal cd jewel cases.