After working through a lot of my placement matches for S3, I've started copy+pasting this message from a sticky note on my desktop:
this is my order of skill level, though I'll fill in where needed:
jungle > top > support > adc > mid
It seems to facilitate discussion a bit better than trying to call my best roles. My two cents.
EDIT: OMG THIS GUY INSULTED OUR PERFECT COMMUNITY LETS DOWNVOTE HIM INSTEAD OF TRYING TO IMPROVE IT