Originally Posted by mr. wally
Why did stannis waste his cloud monster to get rid of rrenley
why not take out a more highly valued asset like joffrey or tyson
Especially since it looks like it's pretty much a one and done deal
Or else why wouldn't the red witch start pumping them out like rat litters?
Hell If she could it would be game, set, match for every leader except maybe dragon mom.
Killing Joffrey wouldn't really have done anything. His younger brother would have just been next in line when he came of age, and he still would have had Renly and his giant army to deal with.
Killing Renly was definitely the way to go. It not only got rid of his biggest opposition, but it also gave him an army (as most of Renly's bannermen would and did flip to Stannis' side with Renly gone). From there, taking King's Landing was supposed to be pretty easy. Remember, the overlying tone of the season was that Stannis' (new) army was coming and King's Landing was screwed. Stannis just didn't count on...
1) Tyrion coming up with a way to instantly destroy half his army
2) Loras being Renly's lover, leading the Tyrell's to not only not join him when Renly was gone, but also to fight against him
3) Edmure Tully messing up Robb's plans, leaving Tywin free to bring his army back to King's Landing just in time.
It took a lot of unfortunate circumstances for Stannis to lose to Joffrey. Once he had Renly's army, that part was supposed to be a relative cakewalk.