I'd like to vote for this one.
I feel that this sig just screams the theme of death. The render used it perfect, not only does it show the hardship that Spiderman had to endure in fighting but it also shows that he may have won from a hard battle but he still lost someone very dear to him and that just sucks (lack of better wording LOL). I feel that the aura added also emphasizes the emotions conveyed by the render and makes it even more effective.