3. Walt Jr.
There are probably some people who agree with me. But I think that Walt Jr. should survive to see the destruction his father has brought about. You see, Walt Jr. is, arguably, the least developed main character of the series. Walt Jr. hasnt been let in on Walts violent alter ego. Hes done little to question anything thats occurred throughout the series short of throwing the odd tantrum. He has had some poignant moments. But I think R. J. Mitte deserves a chance to show us some serious acting chops before all is said and done. And here is the perfect chance. If Skyler and Walt both bite the bullet, he will likely be left in the rubble as a surrogate father for Holly. How heart-wrenching would it be to see him deal with that? This combined with Maries circumstances (as predicted earlier) could be a real strong illustration of the damage Walt has done. Walt J. and Marie need to live because we need to see the emotional wreckage Walt leaves behind. Plus theyre both total innocents. We dont want to see them go.
2. Saul
Now this is the only entry that Ive made for entirely superficial reasons. You see I think that Saul should live because the character is entertaining. Yes hes a scumbag lawyer. Yes hes helped make all of this death and destruction possible. Do we care? No we dont. Hes funny. Saul is a character who seems too detached from all the madness. He hasnt ever been in the thick of the action. Hes easily the biggest comic relief of the show and has hardly been developed. Sure killing him would elicit a response from heartbroken fans. But who could they possibly want to turn us against? Walt is already as unlikeable as hes going to get. It seems that Saul should be allowed to live solely to preserve the most light-hearted aspect of the show, the humour. Plus Gilligan has been teasing us with the prospect of Saul getting a spin-off show. If Saul dies and we get a prequel series, it will be far too sombre to be an effective comedy.