The thing I found about Dark Souls is that if you know what you are doing it is easy....
The only challenge Skyrim posed me was not smashing my controller after the 20th claw door. I never found myself actually caring what happened. If I died I would respawn at the last door I went through. Usually no more than 5 minutes playtime. I could explore 100 dungeons but after about 5 they felt tired. No point having hundreds of dungeons if each one has the same puzzles as the last.
Skyrim was an amazing game but it was 2 steps forward three steps back for Bethesda.
There's always DoDonPachi Resurrection for anyone who really wants to indulge their inner-masochist