Actually, I wrote Claim A in such a way that it applies to uploads. Near as I can tell H disagrees with B and/or D, or else he believes that FAI will 'emerge' naturally (e.g. from interactions between uploads).
Well, if we understand A to include ems, then your B, C and D are misleadingly worded. They all speak of a single AI. If you reworded them to allow for ems, then I guess I would agree that the dispute is located there. But I would be interested to see such a rewording--I think it would be favorable to Hanson's point of view.
It's also not clear to me that "single powerful AI or trillions of uploads" together add up to p > .5! But that might be off-topic.
Link: overcomingbias.com/2011/07/debating-yudkowsky.html