As I said once, a long time ago, Cindy is probably the most "vulnerable" girl you can choose. She doesn't know where she belongs, or what she truly wants, which makes her easily influenced. The whole photoshoot thing with Axel is a great example. She charges head first, but isn't truly sure or confident, and she needs your approval/disapproval when it comes to strip naked. She doesn't want it, she needs it.
That pattern repeats itself often when you speak to her. She needs helps, advices or simple someone to talk to (even if she doesn't always make sense, dueto her quite immature behavior sometimes).
This is also why her relationship with Wade doesn't work, because Wade - as a guy that got everything
he wanted - is passive as fuck, when Cindy needs attention (not buying her gifts even if she acts like a princess, but guide her, advise her). She actually needs a dedicated boyfriend that can stand his ground, and listen to her insecurities. To help her grow.
That's the reason why I think Cindy is the most (potentially) interesting choice for Ian, why she's my favourite and why I want to support her. Being a beautiful blonde is also a good point
To be honest, I wouldn't be surprised if it's revealed she's actually depressed at some point. Or if we get a scene where she breaks into tears.
But of course all of this is my own interpretation, and feelings. I would be extremely disappointed if she end as a cliché of a diamond-eating bitch. That would be extremely lame and uninspired.