Well, then please share your assessment
I use both for work and play and there is little to choose between them, to be honest. There are small differences but this is to be expected and mostly in the way the user interacts with the device.
I've been asking for a while now that we get clarity and agreement on what we mean when we use terms like 'business orientated' or 'multi-media'.
What 'business function' can't the iPhone perform, for example? What 'multi-media' function can the Bold or Storm not do?
So, in terms of functionality, I see little difference between the phones. But it's often the small details that swing your personal preference.
Right now I use the Storm more than the iPhone, primarily because it can forward SMS's, and can type in landscape. Both functions I really need. Version 3 of the iPhone OS sorts this, BTW.
Also, for the odd times I need a GPS, the Storm is fully functional.
But I miss the iPhone's super slick touch screen (but I prefer the Storm's 'click-screen') and battery life. And the Apple app-store is still leagues ahead.
I started using the Nokia 5800 recently, and while it's still early days, it is right at the bottom of my list at the moment. I suspect it also needs to first go through a couple of software iterations before it becomes usable. And the build quality is not nearly at iPhone or BB levels.