ADC: Graves, Kog'maw, and Vayne (Draven is an obligatory close fourth)
Top: Maliphite, Elise, and Irelia
Mid: Kayle, Orianna, and Diana
Jungle: Vi, Nocturne, and Rammus
Support: Lulu, Leona, and Karma (makes me sad that she doesn't fit in most comps.)

Top: I love Nidalee. She's steadily becoming my main and the only champ I will solo top with. I don't like other Tops because none of them can poke like Nidalee can, none of them are as mobile and agile as she is, none of them have as much sustain as she does (Except maybe cho) and none of them are as anti-gank as she is (except teemo). And at the end of all this, she can put out high burst when she is done spearing you. <3 Nidalee.
Mid: Lux,Fiddlesticks or Veigar
ADC: Corki is #1, Miss fortune then Vayne
Support: Lulu, Leona or Sona
Jungle: I almost never jungle, but if I do it will be Shaco, Cho'gath or Nunu

ADC: ezreal, graves, CORKI
Mid: katarina, Ap yi, Kassadin
Jungle: Shyvana, shaco, amumu
Support: Blitzcrank, Nunu, sona
Top lane: Garen, Elise, olaf

Top: Vi, Fiora, Akali
Mid: Katarina, Leblanc, Lux
ADC: Vayne, Miss Fortune, Caitlyn
Support: Nidalee, Lux, Kayle
Jungle: Evelynn (No others.)

ADC: Miss Fortune, Graves, Corki
Solotop: Singed, Nidalee, Jarvan IV
Jungler: Amumu, Xin Zhao, Jarvan IV
Mid: Fizz, Ziggs, Nidalee
Support: Lulu, Sona, Taric

ADC: Tryndamere, Ashe, Sivir
Solotop: Volibear, Thresh, Elise
Jungler: Kha'Zix, Hecarim, Rengar
Mid: Twisted Fate, Diana, Mordekaiser
Support: Soraka, Taric, Janna

Mid: Karthus (undertower farm, wut can u do to mi, /laugh), Veigar, Diana
Top: Garen (DEMACIAAAAAA), Jayce, Sejuani
Jungle: Sejuani (Pigs rule the world), Fiora, Rammus
ADC: Vayne, Caitlyn, random pick.
Support: Yeti, Sona, Leona.

Top - Rumble, Cho'Gath, Garen.

Middle - Rumble, Master Yi, Veigar.

Support - Blitzcrank, Thresh, Soraka.

AD Carry - Kog'Maw.

Jungle - Cho'Gath, Nocturne, Kha'Zix.