I'd say RIM was superior in messaging, but lost because they kept the platform closed - and inferior in photos and music, which made them lose as a multi-use device.
If only they would have brought BBM to iOS, Android and the rest of the platforms...
Sarcasm tag needed? I think OP makes a good point. If RIM would have cross-platormed BBM sooner, they would of incredibly early to the messaging platform war
Which would have added $0 in revenue to the company.
Which is not if sell one dollar just like whatsapp