Originally Posted by VisionOn
Actually I think recently she has proven to be not as smart as she thinks she is.
In Joffrey she has created a monster she cannot control any longer nor predict his reactions. She has played herself out of the game and does not appear to have a strategy to place herself back in a position of power.
Cersei is just sitting on the sidelines watching Joffrey do and say whatever he wants now and she is not happy about it. Just as in this episode when she made sarcastic comments about his bravery and he then completely brushed aside the perilous situation they were just in to contradict her in front of his new bride to be, Joffrey is now in control of her fate.
I don't think Joffrey's uncontrollable monstrousness is due to a lack of intelligence on Cersei's part, though. He is what he is, and no amount of cleverness on her part could have changed that. It's not as if any of the other alternatives to Joffrey sitting on the Iron Throne would have been any better for her.
IMHO Cersei is one of the dumbest women in the show. Her father, a very shrewd man, marries her to the man who becomes King. She fails to control him with what she thinks is her best weapon, so she not only decides to screw around on him, but does so with her brother, producing a sociopathic child that she raises to believe he can do no wrong.
She is then surprised when, after she orchestrates Roberts murder, again using her only effective weapon, she has zero control over her hatchling.
She then abuses the person she should have been encouraging to calm her offspring, due to her insane jealousy.
Now she is facing a truly skilled opponent, and as the dinner scene showed has no clue how to deal with an intelligent, well trained female adversary.
I hope to see Cersei truly beaten, soon.