Teemo is free way to much. I know, he was my first champion, but really he is a niche champion. As an AS AP champion in the meta, a new player will not understand the fact that he isn't an ADC because of his abilities... It may be better to see an Ashe and other ADCs more often. It would be nice if we saw a lot of champions in the meta so people can get used to the meta (like 8 champions) and then like 2 non meta champions so people can try them (talon, galio, etc.)
Also, there are never great junglers in the mix. Again, I understand jungle is a complex position, but as its my main, I have to buy a champ and hope to god I like them cause it took 3 months for Shyv to be free... so before I just bought her and took a chance. Same with Nocturne. You should probably rotate one ad jungler and one ap jungler every week just so Junglers don't feel left out...
Just a thought.