A couple of days ago, I was on the A350 with the bigger J cabin. Walked around the plane, and while I didn't look at windows/views, I can tell you that 41ACJL have excellent legroom because there's a full sized door in front of it. 41DEH have good legroom, too, but not nearly as much. If there are two of you, I'd pick 41 instead of 42 since the pax in the 42 center seat will have very little legroom.