New Rating System for Champions
In my opinion I think League could use a new, more robust Rating system to give people a good idea of what a champion is good or bad at, at a glance. "Ability, Attack, Defense, Difficulty" Doesn't really give you all that much to go by.
It should be based on the core 'activities' in the game
Assassination Dueling Siege Split-push Waveclear Objective control Teamfighting Protecting Allies
Each one will hav ea rating of Strong, Average or Poor. Following that, a short explanation (ex. "Fiora is among the best champions at fighting in 1 v 1 situations. Shen is among the best champions to push a lane alone, and force attention. Akali is among the best assassins, and can easily burst down enemies by setting up a successful ambush. etc.")
Shen would have strong split-push, teamfighting and protection ratings, average or weak everythign else. From that it's easy to see what kind of character Shen is.