Riot you need to buff fiddles
When I build full damage and do well I am still barely beating out the support for dmg. It's not just the jungle itemization; the constant nerfs to every aspect of his kit, the poor AP scaling, the fear changes. It is all adding up to a champion that cannot carry a game form the jungle.
I do more dmg and carry better as jungle teemo. Think about that.
these supports will out damage multiple people on the team usually, 
if these supports are out damaging you though than there is a problem, not necessarily even with the champ you're playing.