Seems kind of funny to me how the Ultimate Pack, which has the most mods and statically would take the longest to have all of them updated is leading in percentage updated.
I guess it's just because it has more mods and some of what it has is in other packs, so the probability is actually in it's favor for being completed quicker at first, but it in reality would be the last to update due to it having mods that the other packs don't depend on.
Though it's worth noting that the Direwolf20 pack technically won't update until he does, which could be sooner or later then any pack, and would could change quite a bit if it updated sooner(due to things not being updated and him not waiting for them and thus likely seeking replacements), or later(as more mods would have been released by that point, meaning he'd have more choices as to what mods to add to his pack).