I play Morg support and have had miraculous results. I actually like playing support. This came about when trying Nien's advice of playing 10 games with each role. I had seen someone play Morg support and dominate so I tried myself and it was great.
I've also played Annie support and she too is amazing.
On a side note, played Karma mid and man is she solid. I was able to hold off a Zed.
Fiddle sticks. I always get a lot of kills when playing him as support, but they're almost never steals but actual secures. Plus his fear is godly if you have an ADC with half a brain (so around 15% of the time). Great damage with his crows though.