I don't like any kind of scaling. It was especially a problem in TES:Oblivion, and on a much smaller scale in Skyrim (scaling there was more limited). But oblivion just destroyed the point of leveling due to its scaling. Never a challenge because of going into a dungeon/place you were still way too low level for.
IMO, was the first DivDiv still best, bit of sandboxy, but still lots of quests with different solutions/approaches. Lots of places to discover, and a whole bunch you needed to mark cause you got your ass kicked. So you could go later back to that place and totally destroy all enemies.
With scaling you can remove the entire leveling system altogether, if the entire world gets stronger with you.
