Given the chance, I would wear a chainmail bikini into battle. It's all about the distraction factor. Well, that and weapons were always ahead of armor, meaning you were wearing 200lbs of stuff that barely protected you from half the weapons on the field.

Edit: Also, outside of middle school, real women have breasts as well as hips. Shocking. Without a good figure, it's going to look a lot like annie, as there's only so many ways to make something look girly when it has the figure of a boy.

Now if league were to release a champion with unrealistic proportions it might be off putting, but they've yet to do that.

Let me say this,
who cares?
Honestly, if they made a heavy woman, you'd just complain about that, if they made a overtly muscular woman, you'd complain about that. Play the **** game.
Who cares.
Who cares.
Really what's the big deal?
It's friggin League of Legends, not some issue about women's rights.
What if in the world of League of Legends, that's how women just naturally look?
Christ! It's a fantasy world, suck it up, deal with it, QQ more, and play a **** game.

I know it's been said time and time again, but we need moar Ironscale Shyvanyan. I mean, Shyvana.