I'm not really feeling much love for IW after 2 hours. I really do enjoy black ops 3, casually, hit rank 4 prestige or so but kinda stopped playing after Overwatch although I still pop in every now and then. BO3 feels smooth and you can shift from one "move" to another nicely, and you have a good sense of whats going on around you. Nuk3town is also one of the greatest multiplayer maps ever made.
It didn't feel smooth at all in IW, although it felt very similar to BO3 but just not... as good. I dunno, maybe I just don't know the maps or something and it'll get better once I do. The class visuals / powers / descriptions also looked extremely weak compared to BO3.
By contrast I loved every second I was in battlefield 1, even though I was dying non stop in both. So far first impressions are BF1 is amazing, IW is a step below everything else. I am not cancelling or anything, gonna enjoy the SP campaign, MW4, and try to fit in some multiplayer but expectations heavily lowered at this point.