>>6689375I'm not sure what you're disagreeing with, the MonColle balls have pretty visible joints on the back. Not as noticeable as the Bandai ones, but the Bandai ones do at least serve more of a purpose, as they include a clip for attaching them to your belt making them much better cosplay items and when just sitting on their stands you're unlikely to be looking at their backs anyway.
There are pros and cons to each, but I still maintain that the Bandai ones are higher quality and nicer looking. Both are fairly stiff, but the Bandai ones generally open better in my experience, have accurately detailed interiors and double as a PEZ dispenser.
