I feel like DPS is lacking something if it doesn't include the chance to hit in there somewhere - and if it does that, it's only meaningful on one specific monster.
I'd really love a tab in the inventory screen showing your chance to hit, damage per hit, swings per second, and damage per second in a list for every monster. Yes, all of them. Maybe just for that difficulty.
I'd really love to see access to very advanced statistics if desired.