Supp/Mid/Top looking for bronze-gold team

I have CV, and Skype I am in silver 3 If I go supp I main Thresh, but can be braum, morgana, and nami. If I go mid I can Leblanc, Yasuo, Katarina, Twisted Fate(starting to learn), Akali, and Nunu(for norms.... its really fun). If I go top I can Riven,Sion, Gnar, Nidalle, Vladamir( learning) and Irelia.