hmm very difficult...
Archimonde cannot become skyscraper sized so easily, the story goes is that Archimonde was gaining energy from the world tree which is why in the game cutscene he becomes enormous and the reason he could destroy Dalaren so easily is according to that it was built upon powerful leylines that Archimonde had great power over
however he has incredible endurance, and as Darth said can blast the body of enemies sending them inside out..however...Raziel can become spectoral at will and still has the power of the reaver...Archimonde could be stopped also eventually by Dante using Quicksilver, the time will slow down so Archimonde would be very slow and Dante could use his various powers and abilities
Hayabusa and Ayane will simply be Raziel food...
Kratos, well this depends, God kratos would be formidable, normal kratos with Titan powers would also be fairly formidable, what items does he get?