4. Saul Goodman Must Survive
Like any good cockroach, Saul Goodman will wriggle free of repercussions while even the likes of Walt, Mike and perhaps Jesse will fall by the wayside. Goodman has always been one of the show's primary sources of comic relief - in a show that gets unquestionably grim sometimes - and so to kill him off so late in the game would deprive the show of those small morsels of levity that it desperately needs. Indeed, if he ended up being the last man standing, that might be the most hilariously ironic thing of all.