I'll have to vote for Abnegation.
MAMOM's tag seems like it's missing something, and there are hardly any effects to make the tag more abstract. I'm not saying that is what it's supposed to be. Tenza's tag also seems to be missing something, don't know what, though. I like the warped "TotF" text, though.:) Brane's tag lookes very "genuine" and I like what he did with the stock in the tag. Abnegation's tag is full of different colors clashing up on one another. Definetly a change from the original stock. To me, it looks very abstract and I like that sort of tag. moments.'s tag is definetly thinking "outside of the box", but the empty spaces around the shapes could use something to fill in the space. Also, I can't really see the word's "evolution" unless I look away from the tag directly. You will probably will be able to see the text fine, but it hurts my eyes.
So overall, I vote Abnegation's "Sinner" tag. Great job, everyone! I hope the next TotF wil be as succsesful as this one!:)

Let somebody else try first.