I'd be interested in a grid/specs that enabled me to focus on armour types for different purposes and with good reason, as opposed to the basic "stack accuracy" "stack strength" etc

E.g to make an agile, light armoured PLD v Heavily armoured PLD you could invest in light or heavy armour passive traits, that have various bonuses or penalties to impact casting times, potencies, damage mitigation, ability recasts

A light v heavy pld would in essence do the same role but the playstyle has the potential to be a lot different.

It makes a change from the basic "ok lets just buy all the accuracy gear on the AH and go whack garuda"