Viserys and Jaime stole the show for me, for sure.
Viserys was absolutely fantastic, if any of the characters were spot on their versions in the series, then it was definitely Viserys. Complete scumbag. I loved it when Drogo left and Viserys ran after him squealing ''Where's he going!?''; summed Viserys up to a tee.
I like how the show is embracing Jaime's ASOS part 2 - AFFc character and implementing it this early on into the series. It shows that Jaime isn't this totally cold, heartless bastard that we assumed he was when we first read AGOT and ACOK. I love his relationship with Tyrion.
I thought Theon was excellent too, you already get the impression straight away from his scene with the Direwolves that he is this complete wanker that we see the full extent of in ACOK. Definitely one of the best character's in the books and show so far. However, the actor who portrays him looks nothing like I envisioned him. I pictured Theon looking a lot like Anakin Skywalker in Revenge of the Sith, no idea why though
. Also, if I had my way I'd swap Theon and Rodriks role around, so Theon accompanies Cat on her journeys so we get to see more of him, it would be a waste of his character to see the bare minimal of him like we do in AGOT, and Rodrik really hasn't made an impression yet and in fairness seems fairly dull. I'd much rather see Theon following Cat around, keeping Cat on her toes because she doesn't really trust him and finds something disturbing about the way he ''smiles all the time.''
Martin has also confirmed that an unexpected death will happen in the first series as well. A character who dies in ASOS in the books is going to bite the dust in the first series. I have my suspicions of who it could be but of course I don't want to ruin anything for the guys who haven't read the books.
Also heard that Robb is going to be the main character of the second series when the producers get round to making it. I hear that his story is going to be greatly expanded and we'll be seeing much more of him in the series than we do in the books. I'm all for this because we hear of Robb getting up to all of this awesome stuff but never see it. And of course, making Robb the pivotal character of the second series will make that all important scene in the ASOS part of the show; that much better.