The former is great because you often get to do absurd things like put 1,000 1/1 tokens onto the battlefield in a single turn and kill off seven other players at once by sacrificing them all
It offers about the most combined specific and general card quality but when you want one kind you play Vampiric or Demonic and when you want the other you just play Ponders and the like
Funnily enough, Sewers of Estark and Windseeker Centaur have still not received any reprints, and yet significantly fewer people seem to care about those two cards
In your typical game of Limited, this is likely to just be a big Trampler
Sothera, the Supervoid Sacrifice decks have long enjoyed Dictate of Erebos and Grave Pact to whittle away opposing resources, and Sothera, the Supervoid elevates it to exile-based removal rather than sacrifice
More colours means more options, right