The Rescue armour is needless, especially how some are arguing for it. Like I've said elsewhere (in a thread actually dedicated to this conversation), if she were to get some armour it would be naive to think she'd simply run away to safety.
You're essentially reducing her to a damsel in distress by giving her armour just so she can run away (and let the men fight
). If Tony uses his armour through Extremis to remotely save her in a scene then it's not so bad as she doesn't really have a choice, but giving her an armour of her own and expecting her to simply run away is silly. You undermine her character that way.