Uhm! Interesting debate!
I have a Google G1 rooted and a blackberry 8900. It all depends what you need.
My observations:
With android you really can't get attachment on emails.
Droid for Verizon to me seems like it will not be able to be rooted and pushed to it's limit.
Web browsing,youtube,iMusic(free songs downloads), are just a name of a few goodies....Those applications are perfect.
It all boils down to personal preference and your daily needs.
Here is a analogy: droid is a tuner car, blackberries are like a high end luxury cars.