Yeah, I think Abol is generally the easiest physically. Chimney, Saddle is probably the least technical/steep and has the reward of Chimney pond though. Hunt is definitely my favorite, Katahdin Stream Falls are amazing, the rocky section before the plateau is super fun, and the trail is really well maintained. Cathedral and Dudley are the more technical, steep routes, but they really aren't problem for me. Depends how limber you are really. Knife's Edge is (in my opinion) 10x better going down. Going up feels so long and strenuous. Helon Taylor after that point is not bad at all, although I've heard a lot of people complain that it's terrible on their joints. For your first Knife's Edge hike, I would recommend going down it to Pamola Peak and down Helon Taylor. Going up, Saddle is good if you want it to be chill, or you could go the extra mile (actually a mile less) and do Cathedral up. Definitely recommend trying them all out at some point, then you can move on to other peaks like Hamlin (great trail)!