Out of the ones you have mentioned, I prefer Deadfire. Primarily because of the gameplay.
However, out of all the modern iso CRPG's I think Shadowrun Dragonfall might be my favourite. Or at least I enjoyed it the most, and felt quite engrossed in the story and that. I'm not a huge fan of the battle system though.
I played D:OS 2 for about 15 minutes when it came out and haven't tried it since. Serpent in the Staglands is quite interesting. Oh yeah, Pathfinder Kingmaker has been pretty decent. Now my PC is finally repaired after months I can carry on with some of these bloody games.
I almost went on a rant about giving things a score out of ten but I wont bother.