Originally Posted by Lyte
This has similar concerns to another poster's idea to give people more Elo for bigger margins of victory. There's a lot of room for people to game the system and stall games knowing that they can more Elo for it. If losers also lose less Elo, than both sides will want to stall
What about calculating margin of victory on a per-minute basis?
For example, calculate the following:
(Kills / Minute) * a
(Assists / Minute) * b
(Gold / Minute) * c
(Towers / Minute) * d
(Minions / Minute) * e
etc., where a, b, c, ... etc. are some constant weighting factors to keep all the values closely weighted. Gold is typically a much larger value than kills, for example, so Kills/Minute would need to be weighted up to measure against Gold/Minute.
Take the top 3 and bottom 3 values from that set. Use those values to calculate ELO gain. So in order to gain extra elo, you have to 1) be helpful in more than 1 way, 2) be helpful in a manner that is to scale with the game's length, 3) avoid being really really terrible in your worst areas.