I was in 1K two days ago and I didn't think that 1A and 1K were that far apart. I prefer row 1 compared to the center seats because they have sides next to the window where you can put things. In the center seats, there is really no where to put things. If you talk all the time, then I would suggest the center seats. If it is an occasional conversation, then I say row 1 is better. In row 3 or 4 center, you also have the people sitting on the window near you so it is not as private.