a ninja having one shadow more than a pld having is not that big of a deal. The difference is, when a ninja tanks and gets his shadows knocked off against big HNMs, there is a large chance that he/she could get killed. PLD can take a few hits and can cure themselves if a healer is not able to get to them fast enough.
For most endgame situations, PLD > NIN.
but there are a lot of cases where NIN > PLD
If a NIN gets hit with the proper gear, no they will not die any faster than a PLD. My NIN with -50% damage taken gear + defender + tav tacos takes about the same amount of damage per hit on Fafnir/Tiamat as my full koenig PLD/WAR in -35% damage taken gear. If PLD/WAR had more sources of -% damage gear taken I'd sure use it a lot more, but in order to achieve that number on PLD as of today you have to sacrafice a lot of DEF, VIT, enmity, HP, and MP.
[quote:2a454]Also you forgot at 2006 pld can wear homam haste+12% and fast cast trait plus can get fast cast earring = fast cast II as pld/nin
can spam utsi + faster flash and already you got marchx2 and haste ...
pld/nin with good support own nin/war anytime