Yep, I got completely the same thought on Stannis. Also, Yara (or Asha) is completely different from how I envisioned her, but she doesn't do a bad job either way.
Also credit to the guy playing Joffrey. As disgusting as his character is, the actor plays it to perfection. A lot has been said about the child-actors for a series this violent and all, but they're all doing an amazing job.