[{quoted}](name=Hand Hanzo,realm=NA,application-id=3ErqAdtq,discussion-id=nWeWFGpM,comment-id=00030000,timestamp=2015-06-19T00:22:09.343+0000)
I almost never see Ezreal mid lane, and there's a good reason for that.
Ez is WAY too squishy to be mid lane. It's not like top/jg where most of the tankiest of all tanks are, but...I do go mid with a tank...

If you see
(or
, my not-so-tanky other mid main) and you're mid lane Ez, prepare to be shit upon. Because that's happening.
I've only seen
a few times, and I've seen
way less than that.
mid is common, and there are so many guides and videos out there that show you how and when to use him. I've seen him have success mid, but it is dependent on your knowledge of that champion.
can take out
, but it can also go the other way around just as easily. It's an even match up. Same with
, but I believe he has the advantage around level 6. If you are counter picking for him you are going to want something like
or you could follow the ADC as mids path and pick
. Again it's strongly based on how well you know how to build the champion.
You also do not have to play tanks on top, and it may not always be the best thing. I play a non-tank top with lots of success, but that's also not uncommon. Who you pick to fill what role should be more based on your team composition.