I recall running Sunless Citadel and skipping a lot of the combat because it was boring. Just rooms with monsters. Now sure, I was running the adventure 2 years after 3e came out, so maybe it was more entertaining in the early days, but I much prefer that when there is combat, the combat scenarios are original.
Sometimes this is hard to do in writing, because setting up a cool situation requires a long word count. Case in point, the last Burning Sky adventure (for 20th level) is about winning a war, and we want to provide a strong feel of the heroic final battle to cap off the whole campaign saga, but I've worried about fights being tedious, so I've tried to make sure every combat encounter has either a roleplaying component, puzzle component, or nifty trick.
But one of the earlier adventures, #4 - The Mad King's Banquet - I think had the best mix of narrative options and interesting combat. Aside from one rather throwaway battle in the beginning, the fights are really well paced and they take turns driving the story and leading to resolution.