One of the best ways to sort new items on OSI, is by mod count, and imbue intensity. Find the maximum imbue intensity for legendary artifacts, and the max mod count for items, calculate with 80% of max intensity is for both, then use that as rules for your favorite looter and you'll always loot the top 20% of items. You'll need to do it for 2 handed weapons, 1 handed weapons, armor, and rings/bracelets separately. Because they have differing imbue intensities.