No, all of the above don't delay fighting, they either stop you from hitting or delay your opponent's attacks on you..
Nawoo you may remember me, we managed to get a few dharok helms and missed a blue partyhat by inches.. That was so frustrating.
Anyway the other day I was delaying and both dds specs were hitting at once, so you could end up doing some incredible damage with two claw specs, but I forgot what it was.. I'll PM you if I remember, I think you deleted me from MSN.