Der Witcha is so damn good, and I'm only about 15 hours in.
I feel like I should update my previous comments and admit that TW3 is by far the best game I played in 2015, and it may be the best game I've played in the last 2-3 years.
I'm really interested in getting Doom (probably on PC). But, I'm also about to wrap up Dark Souls and then I'm debating about whether I should play Doom or Dark Souls 3. I've heard great things about Doom, but I've also heard the story line is short and the multiplayer underwhelming. Dark Souls 3 I know will easily consume a lot of time and be worth the $60 - I'm not so sure Doom would be.