Single target, no movement Simcraft does not do a good job of accurately capturing the relative strength of these talents on a fight like archimonde. Ghaddo's modules attempt to solve a long lust-on-pull patchwork -- which archimonde is very not.
Differences that make Sup look better than it is: Simcraft lusts outside of execute range, does not save cd's for execute range, doesn't pot in execute range
Differences that make Sac look better than it is: Simcraft doesn't ever have to move
Less straightforward differences: doing damage to adds, gaining a bunch of extra shards from adds
Another Defiler's End lock here to recommend destro, and sac over sup if you're dead set on affliction. You'd have to have a ridiculously inefficient movement tactic for the imp to be good.