Man, I'm really enjoying Infamous. I haven't played an open world game in a long time. I think that's part of why it's appealing to me. The powers are fun to use and the story's been pretty cool so far. Love the superhero vibe to it.
Also played some Dead Nation last night. I had to get accustomed a bit to the controls. Even though you use R1 to shoot at the zombies, it still has kind of a twin stick shooter feel going for it. I accidentally kept throwing grenades because I kept pushing L1. I have that setup so burned in my mind (L1 to zoom, R1 to shoot) it's just habit.
Once I switched throwing grenades to the square button I was good. I've been enjoying both games though, but definitely liking Infamous more.