I remember two things about my NW Hancock visit. The wooded mini knife edge just S of the NW peak was a fun feature, and I too liked the view from there into the ravine. And second, I remember how utterly long it seemed to take to return to Hancock Notch from the base of the slide along the Cedar Brook Trail vs. what I was ready for based on the map. The latter could just be standard "the exit always seems long" syndrome, but it's notable in my recollection to this day.
You mentioned enjoying the ridge to the N of the NW summit. Along with getting to explore the ties to Carrigain from Hancock's other end sometime, I think it would be a fun exploit to hike up that NW ridge, perhaps culminating in either a full NW-SE Hancock ridge traverse or a lollypop loop around and back down over the ridge across the ravine.
Alex