They can get basically everything on her phone. The only thing they can't really do is mess with her settings. They could even track her location with find my iPhone
Lord knows if she has credit card information on there
It doesn't matter who is better than whom - such a acclaim is subjective. At the end of the day, you could have IVOR Novelle (?) quality material, but it means nothing if no one else has access to it. Azalea is playing herself tbh. She is talented but people don't want to check for her because of her problematic behavior and it's a shame.
Director X (?) has said the LIW video was inspired by Usher's 'Yeah' (which is not a unique concept). Zayn is also a big comic book ho. he chose the character whose image was based on himself, Robby Reyes/Johnny Blaze... coincidentally so did Azalea.