@Umiman: Aye, fighting her with melee DPS is a huge pain. I was in a game with yoda, in a bottom lane with a teemo as jarvan. Early game her harassment was pretty harsh, but thankfuly teemo could counter harass when she got close to do it, and she had to overextend a bit to hit me, causing her to take a dragonstrike to the face everytime. We won the lane because me and teemo could harass kat and vayne harder then they could harass us. Her squishyness means she'll be at risk everytime she tries to harass someone. In consequence of this, her endgame was pretty bad.
I took a few conclusions out of this:
1-While she's pretty hard to duel, but she's sorta bad in dual lanes. She can only target once person at a time, and due to being squishy as hell, she risks herself alot when she goes in to harass, because she can get counter harassed pretty bad. While being jarvan meant I wasn't helpless against her, her mobility is just far superior, but she still got a dragonstrike and a teemo dart on her everytime, and there was nothing kat could do about it. Eventualy she had to play defensive because she just couldn't avoid the damage like she can in a 1v1.
2-She does pretty bad if you mess up her early game. Due to my level 5 dragonstrike taking 1/4 of her health on every hit, teemo's darts and mushrooms and the fact she was underfarmed, there was nothing she could do but sit in lane waiting for their jungler to try a gank. She then just died or ran away when teamfights started due to yoda's mord flailing AoE around and ignoring her mobility, my dragonstrike hitting her through her team, nocturne jumping on her, etc.
She's much easier to counter in lane then in mid, unless you're full melee and your mid is like, Zilean or someone else who can pull off easy long range damage, which most mages do, meaning Umiman is right and mages can really ruin her day.