To add to jobs I know:
Fynlar wrote:
NIN body can be worth getting for Migawari, but if you only plan to use it for attacks that do damage that exceeds your max HP, it isn't particularly required
NIN feet give an extra Utsusemi shadow (macro them in for cast), so will always be useful.
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DNC hands are still useful for Reverse Flourish
DNC body is 10% DW and is still the best TP body in many situations.
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MNK is one of the jobs where I've actually phased out all of my empy gear. I don't know what h2h "tiers" are like now with the new ilvl weaponry though, and I didn't bother to find out. The hands could be useful if they'll let you break a tier, but even then I'm not sure how that will stack up with new hands gear. Body might be good if you don't have a Thaumas Coat (if nothing else, it might be particularly good to have on while Impetus is active)
MNK body is good with Impetus up, can still be best in slot depending on other gear/buffs/target. Also became more useful in Nov 2013 update due to Victory Smite being unlocked for use with other weapons (since Smite is a crit WS)
COR:
* Hands are a must, extending Phantom Roll duration
* Feet enhance Quick Draw's effect that increases same element damage done to a mob, so are excellent (currently reeeealy nice in WKR to do damage while also weakening the mob to that element for the SMNs and BLMs; also great to pop a fire shot off before using Wildfire)
* Head and Body are excellent ranged pieces (though Iuitl is also good, and the new reforged AF body finally trumps Empy+2)
PUP:
* Body reduce overload is good for your maneuver macros
* Feet are a useful macro piece for Tactical Switch
RNG:
* Body still excellent for all things ranged
* Hands can be useful in certain Store TP builds