Ffxiv Gear Calculator, Here's a few of the features it supports: For some classes, DPS simulations built right into the gear set editor, for instant feedback.
GW2DB Updated w/ Skill Calc,BWE1-2 Diffs, and more! : r/Guildwars2
Guild Wars 2: Heart of Thorns interview unwraps specializations and traits | Massively Overpowered