footfoe wrote:Late to the part, but I gotta point out that the
OP answered his own question
"Greatest champion's grand plan successfully destroyed the world, plunged the universe into a millennia of total Chaos dominance"
Yeah.. people hated it when this happened if you recall..
True enough, but you could alternatively have had Archaon be beaten at the end by the combined powers of all of the major heroes in a battle which kills them all (or most of them) off. He'd have still ravaged the world beyond recognition in many places and you can always pull some Sauron-esque shenanigans to have him return later down the line if you so wished.
What makes Archaon more successful and threatening than Abaddon is that he didn't launch 13 attempts to conquer the mortal realms before he succeeded in anything. He tried in Strom of Chaos, was defeated and then built up his forces and tried again, much more successfully.