IMO, I think after a game is over mini-awards should be given out to players, visible in that fancy new match results view interface. Examples of this would be:
Most creep kills
Most creep denies
Largest in-game KDR
Largest gold earned
Largets gold held at 1 time
Largest health bar
Largest mana bar
Most runes used
Obviously these are just suggestions I'm rattling off of my head, and I'm sure everyone could come up with better ones. I just think it would be cool if the game brought these to your attention rather than you having to scout out for them. Also maybe they could be compared within teams AND against all players. I just think it would be a fun thing to add to the screen- and maybe even add a personal award page where you could see how many of each you have (but only you can see your own to prevent reckless competitiveness within teams).
This is slated to be added in. Check your Match Records, and you will see a pane at the right for such things.
Your idea was so good, they heard it last week!
Too bad It's : Boogie woogie, woogie.