Joffrey My only problem with Joffresy's death is that it was over too quickly and he didn't get to suffer enough. I suppose that cersei's ongoing grief somewhat makes up for that.
Viserys I pitied him and I didn't particularly want him to die, but there was really no room in the story for a "dominant" make Targ.
Lysa Lysa was infuriating but I didn't wish her dead. In another life she'd be a homeless person pushing a shopping cart around. Instaead, she married a Lord and passed her bad genes on to her son.
Balon I would have preferred to have seen him locked in a room with Aeron, with his hands tied to his sides so he couldn't cover his eyes. he was certainly a miserable old *******, and I'm not sorry he died, he just got off too easy
Aerys Duh