I think my playthrough of TW3 was a really good play length. I did all the side quests, removed all the monster lairs, all the ?'s I could find, plus having the GOTY addition, both expansions. Took me roughly a year as a casual gamer playing only a few hours on the weekends.
On the other hand, I only have the Skyrim base game and have yet to finish that, mostly because I'm lost. My main quest wants me to go into the wizard's tower (or something like that) but there's a huge gap in the bridge and I can't find a way in. Many of the side quests I'm on have no marker and the detes give me no clue where I'm supposed to go and the world is so monochrome in color... I just gave up.
Cyberpunk: I haven't finished yet, but I can already see it being way too short. I've been trying to hold off on the main mission to see what the updates bring, but I fear I'm already halfway through that and I've completely cleared 2 areas and much of the others and it's only been a month.