Ezreal. Swain. Plenty of casters are quite lithe.

Everything Ironstylus says is pure gold-plated win.

I'm not sure I'd go around claiming full plate is more comfortable than some form fitting cloth...

But reason and safety are debatable, considering
A) The champions in the league of legends are infinitely healed and revived according to lore.
B) The combat is extremely face paced and mobility is key.

I'd feel a lot safer on the battlefield if I was Akali rather than Garen.

I get that it's difficult to see through the kind of vitriolic frustration that posters like one you quoted and, admittedly, myself have a tendency to put out, but please understand that at least part of it comes from the fact that we've had this conversation many times before. Since the last one that I know of that you took part in, there was the release of Shyvanna, an honestly innovative female champion, and now Ahri and Sejuani. It feels like there was one step forward, and two steps back.

Here are some examples of females with reasonable armor (minus the heels on Leona) that are easily identifiable as such.

Someone has obviously never seen Ezreal. They already have other female body types, they just don't use them often.

Mandy, we're not comparing Akali to Garen, here. We're comparing a chilly Sejuani, and one who's properly bundled up for winter. Poor thing's getting frostbite on her belly, just because someone decided that LoL's target demo is hungry for pixelated skin.

This thread is hilarious.

****, I did not mean to hit downvote! >_<

Anyways, here's the lovely tumblr a lot of these pictures are coming from: http://womenfighters.tumblr.com/page/21

There's a market out there for scantily-clad women with above average chest size, small waist size, large hips, and a noticeable ass. I'm part of that market, I would much rather see a visually appealing character than one that is not. Just simplify it.
1. Say you're out on a walk and you're a straight and single male.
2. Every time you go out on a walk, your eyes are focused on the person in front of you.
3. Would you rather stare at an ambiguous figure not being able to make heads or tails on the gender, or would you rather stare at a Kim Kardashian figure?
I can very well assure you that a majority of single and straight males would pick the second option. I'm aware of it, and riot is aware of it. Stop nit picking something that wont be changed unless you're asking for a complete shift of interests. Where functionality comes above appearance in any sort of graphic. Only place where I can see the opposite being true is if it were to be in a story. Where imagination of how visually appealing a character can be either judged by the readers or established by the author.