The answer is, there isn't really a best champion out there. There are buffed champions making them strong, but lack of still can make you very weak. It's all depend on your skill and your experience to make the best out of it. You can find out the best champion for you depends on your playing style, so go try out each champion and select the one you like to play.
taric
A champion in League of Legends
I got o say it's sona.
As of July 8, 2013, the newest champion released on League of Legends was Aatrox, the Darkin Blade. Lucian, the Purifier, is the next champion that will be released. The date of his release is unknown for now. League Of Legends Champions Guide : elohell.net
The best champion is Darius or master Yi they are so op they are kinda broken. Well at least master Yi is. The best !v! Champion is tryndermere or aatrox.
Fizz.
malphite
The best rank in league of legends is challenger.
he champion that is op right now i got to say is rammus with his taunt and he is like the carry of the ranked games.
the champ that came out in the patch before maokai was karma
the website in where you can change your patch wallpaper and champion skins are leaguecraft.com
a good one