Eldritch_Lord
Adventurer
I suppose it might be more useful if someone had a separate effect that gave them, for example, one round of suppressing of whatever was stunning them, or one round of freedom of movement, etc. (suppressing but not ending the bad effect) and if during that round the warblade used Iron Heart Surge to end the effect.
I like the sanctified mind PrC for that (Lords of Madness). The 1st level ability is Partition Mind: for [class level + Cha mod] rounds per day, instead of being affected by a mind-affecting affect, you can choose to be slowed instead, which will give you the standard action you need for IHS. Granted, not all dazing/stunning/paralysis affects are mind-affecting, but the majority of the ones you need to be worried about are. Pick up and UMD a wand of the heart of air or heart of water spell (the one that gives you a triggered freedom of movement for a few rounds, I forget which at the moment) or dip cleric for the Travel domain and there should be very few things you can't IHS away.