I have most of the Kunark legendary stuff but we don't raid Kunark yet. The piece from Raging Storm that I have and view as better than the RoK legendary (for me, at least) is the wrists. I have several pieces with +heal crits and +heal amount. Click
here to see my setup, if you're interested. I just got the second piece of Raging Storm that dropped as backup/resist gear and for the collection, I'd eventually like every piece. I've gotten really unlucky and still no Kunark set hat yet /sigh.
I have better bucklers for healing than the Buckler of Blight but for some reason I'm still attached to the Buckler of Blight. It confuses me too
I also have my Soulfire hammer but I swear that thing lags my computer somehow. Also, the stats aren't that great on it, I just keep it around for if I need a +heal boost.