To elaborate, the fact that resisted enfeebles such as Flash generate as much enmity as they do unresisted is exactly why PLD/RDM works so well.
Your primary hate spells you gain from /RDM, Blind, Bind, Dispel, Sleep II, are almost assured to be resisted by anything you attempt to tank, but still generate massive amounts of enmity.
The exception is Dispel, since for some reason it can consistently land even with support job level skill.
Edited, Feb 16th 2009 3:17pm by GuntarHolyflame