Battery life is an important factor for me. Even on the 9900, 9810, & 9360 that many complained to have bad battery life, it was still better than my lumia 800. I've just purchased a 9320, the os 7 device with the biggest battery of them all, hopefully this will be a match for the BlackBerry of old.
Sadly, it had some trackpad issue so I have sent in it for repairs, now back on the my lumia as my daily driver, together with an older BB.
I still maintain that just typing alone is quicker on the lumia. But just that you have to be concentrating on the virtual keyboard. Whereas on the BB, I can afford to not look that much while typing. At times pumping in quick replies during traffic lights, while still being able to pay attention to the lights. Also there were less typos the BB. Also editting of text is a whole lot easier with a trackpad. If I were typing this on a Bb, I would have posted this a few minutes ago. Auto-correct still needs sone improvement, there's nothing like good ol' fashion physical keys.
Of course I still maintain that both phone have their own pros and cons. There's no harm in trying a new platform.
I may prefer the BB more but I like windows phone as well. In fact the 2 platform I'm most looking forward to are windows phone & BB10.
Sent from my Lumia 800 using Board Express