XP-Rate Dashboard
Drag the level and the fastest training method for every skill recomputes — with or without best-in-slot gear. The numbers are the game's own: they come from calcExpectedXpPerHour and are regenerated with the wiki, so this tool cannot drift from a balance change.
For the reasoning behind them — why processing skills are ranked separately, what "best gear" folds in, what the rates leave out — read the XP Rates guide.
Not rendering? Open the tool full-screen: /xp-rates.html.