Road to improvement

Below, I've rated the champions that I own and how good with each of them (on a scale of 1-10) I am. I doubt I'll ever be good enough to rank a 10 on them but I'd like to have more 8's (right now, Malphite and Sona are the only 2) and also be able to play an ADC and a jungler without embarrassing myself (my 0/6/0 jungle Kha'Zix performance yesterday was, in fact, an embarrassment... only slightly worse than my 1/7/2 Vayne performance). I'm also pleasantly surprised by the relatively low number of "never playeds" on that list. Lets me know I'm getting my money's worth for those bundles.

Ahri: 7

Alistar: 4

Amumu: 4

Anivia: 5

Annie: 5

Ashe: never played

Blitzcrank: 6

Cho'Gath: 5

Corki: 2

Darius: 4

Diana: 7

Mundo: never played

Evelynn: never played

Ezreal: 3

Fiddlesticks: 5

Gangplank: never played

Heimerdinger: 6

Janna: 4

Jax: never played

Jayce: 3

Karthus: 4

Kassadin: 5

Katarina: 6

Kayle: 3

Kha'zix: 4

LeBlanc: 7

Malphite: 8

Malzahar: 5

Master Yi: never played

Morgana: 5

Nasus: 5

Nunu: 6 (for support, 4 for jungle)

Rammus: 5

Rumble: 3

Ryze: 4

Shaco: never played

Singed: never played

Sion: 4

Sivir: 5

Skarner: 5

Sona: 8

Soraka: 6

Swain: 5

Talon: 6

Taric: never played

Teemo: 5

Tristana: 5

Tryndamere: never played

Twisted Fate: 5

Twitch: 5

Vayne: 4

Veigar: 6
Vladimir (don't own): 6

Warwick: 4
Yorick (don't own): 6

Zilean: 6