Knightfall I didn't like because I just couldn't sympathise with Batman in it. His obsession with not asking for help despite it being a spectacularly good idea (All of Arkham and Blackgate on the loose isn't a minor event, it's a national emergency), assisted only by a very new Robin. I also just didn't like Bane's introduction as "I am better than everyone at everything and can take control of Gotham without anyone really being a threat to me"
Knightquest I didn't care about because I found Azrael to be a dull, tedious, plot-powered character of the sort we already had too many of in the 1990's. I know that was sort of the point, but it just didn't help.
And Bruce getting the magical spine repair was the sort of "out" that made my teeth ache.