From a Jewish point of view.
With a bb or an Android you can have some sort of Web filter.
on an Iphone you can’t because any filter only filters their own browser
For more info go to http://www.webchaver.com or http://www.webchaver.org
As far as which phone to get
I had alt of bb I hated all of them
I have an Android love it
I have an iPod and have played with slit of IPhones when I was switching away from bb to see if I should iPhone and I wasn’t so impressed for someone who is tech savvy. if you want simple than iPhone is the way to go
But Android is my choice love my Android