Garthanos
Arcadian Knight
The point was it can be the same adversary and not whether anybody likes the simplifications. (I didnt like the simplification of Hit Points in AD&D times came up with a hitpointless version of D&D - turned out to be much like a different scaled mutant and master minds),That second thing. But not everyone wants that in their game.
For me the simplifications of the tiered swarm/minion/standard/elite/solo are valuable both as an ease factor for encounter design and in helping the fight to be tactical instead of the boring slog mentioned earlier.