The quality of the writing in the past few episodes has increased so much over even the beginning of the season it's ridiculous.
In fact, I was just browsing over the writing credits.
My favorite two episodes of the series so far: Similitude and Chosen Realm. And when I looked they just happend to be...the first two episodes written by Manny Coto.
And he wrote 6 episodes in season 4. Sweet.
Speaking of Chosen Realm, I think it was going very well until the last one minute. Why did they need that one last scene to say directly all the things they were implying for the rest of the episode?