Let me explain, I've been doing Stratholme more than 80 times already, and I'm not the only one, and the only stupid thing that drops me is the Shaman, Priest or Druid set, I've rarely seen any other 0.5 armor pieces drop other than those.
What the hell is going on with that? According to the DB everyone has an 11% chance of dropping, why the hell do only those 3 drop?
It seems unfair to me, and the set isn't that great for me to be having so much trouble finishing it, it's the lowest set of all.

I've even played with groups that run the dungeon several times in a row and IN NO RUN have I ever dropped the Legplates of Valor, it's always the Kilt of Elements, or the Druid or Priest legs. It's almost a meme the stupid amount of times in a row that the same thing drops, it seems stupid and illogical to me.
In my opinion, the difficult thing should be to improve the set, not complete it.