Never owned a PS3, so no didn't play it. I played Dark Souls first, so I have bias there as well.
The reason I've spent so much time other than how much I have enjoyed the game (and regret not playing it at the peak of it's popularity/player count) is I *love* character building, on Dark Souls alone I have a main (melee only) character, a Paladin archetype, a Pyromancer, a Sorcerer, a Necromancy archetype/Gravelord, a Darkwraith/PvP/Evil character, and a high STR Dragon-weapon character. I just love playing the game in all these different ways that give the Souls franchise another part in it's high re-playability. And yes, I am starting multiple characters of the same types on Dark Souls II as well.
Hell, I even streamed a large portion of my time with the first game and streamed the last few hours of the second game! I have never had a greater feeling of accomplishment in beating a game then I did with Dark Souls.