Best champions to get out from bronze and reach diamond league?

For my opinion best characters are the tanky ones, really good top laner is galio right now, it can carry teamfights easily with his kit. Just basicly a tanky cc champion would be easy to get away from bronze.

Other option is to onetrick 1 champion, once you've mastered everything about that champion work on your map awarness, and other visual stuff and you'll get diamond real fast.