Possible group of death draws for worlds?

So what do you think could be the hardest group that could theoretically be drawn for worlds and why do you rank it as the hardest?

Personally (assuming Fnatic does close out vs Origen and SKT wins LCK) I think it is: Pool 1: SKT (Probably stronger than LDG, but maybe not) Pool 2: AHQ, 2 seed from china (stronger than NA) Pool 3: Origen (stongest possible 3 seed there can be)

I think the only other debatable "worst possible group of death" would be LDG pool 1 and KR 2 seed, if you think KR 2 seed will be a big enough difference compared to china 2 seed that it out weighs SKT vs LDG strength to make the overall group worse to be in. What do you guys think?