Who Do I Play Next?

So I finally got my level 5 badge on Ahri and have decided to solo queue as fill. But I don't know who I want to play next. I have ideas, but I don't want to play something underpowered because I'm still relatively new to the game (level 24).

So far I'm thinking Top: Dr. Mundo, Poppy, Sion Jg: Elise, Nidalee Mid: ? Supp: Alistar ADC: Miss Fortune

Any suggestions would be nice.