I just played my first 5 ranked games.(went 3/2)
And i gotta say, ranked sucks, it's full of trolls and kids, I hate it.
It's just like falling back to lvl 10 where no jungling/supporting exsists.(even though i supported 2 times)

Am in 1242 elo now and i can say if you want to play something competitive, play draft or Team ranked.