Stat suggestion: Revealed enemies
Even though this is not the totality of objectives in terms of warding, I would like to see a stat for how many enemies your wards revealed during play. Again, I realize stuff like securing vision around Baron is important even if it doesn't happen to reveal anyone, but this is measurable and therefore something I'd like to be able to see.
I would also like to see a stat for how often you used your actives on your items, filtered by item (even maybe something like click per minute, based on when you bought the item).