Lets be honest, we ALL have a role that we love and if we don't get it, we just get annoyed a little and we get over it and play another role. Well, so what are your favorite role? [Please leave your favorite hero in the comment section ;)] 
I love Gragas. Off tank mages are my fav and the best at my main role. A good bit of my mains are OP right now granted a lot of champs are op. But to have xin, jax, gragas, diana, quinn, graves, naut ,Ali, Trundle and poppy all be meta is fantastic atm.
I Main Top 
I also play 
. If im support, I play Shen/Lulu and mid Lulu.
Currently working on graves as both a top laner and a jungler. Jungle is by far my favorite role, but I have been finding more success in solo lanes as of late.
My main role is ADC, with Quinn being my best pick (more so the only one I'm actually good with)
Mid is my second, with my best being Xerath, but I have a lot more that I can do reasonably well with: Viktor, Katarina, Syndra, Nidalee, Talon, and Jayce.
Third would be top lane, but I don't play it much. Main tank is Nautilus, and damage tops are Riven and Jayce (maybe GP, but I haven't played him in a while, so I don't know how well I'd do on him after the nerfs)
I am a Pantheon main, so I play Top, Jungle, and Mid, although I play mostly top. That being said I believe Panth is strongest in the mid lane due to the fact that if he gets ahead he can ult bot lane over and over again and get his adc to snowball. Basically i think he has more influence on how the game goes in the mid lane, but he is also very strong in the top lane. He isn't as strong in the jungle though.
I can fill for the most part; my worst role is top, though. My best champions are probably: 
Other champions I play somewhat regularly (with varying degrees of success): 
You forgot fill main O.o
Support Janna is easy mode for me. By level 6 or so I can basically never be killed and can whiz around the map giving out big shields that also give the AD of 2-3 BF swords.
I Would Say Nami 
or Soraka
;)
