[Shade]

Only important lures for pvp are anatomy and evaluating intelligence.
Animal lore is probably the next most useful lure, just for taming and such.
Forensics is actually used for crafting skinned rugs and using taxidermy kits but thats about it, besides telling who killed what.
Arms lore will tell you weapon damage, speed and durability or defense and durability for armors.
ItemID does absolutely nothing. All items are identified when they drop.
TasteID is cooking related. It can tell you information about poisoned things mostly though.