i voted midnight, simply because it's a long album and every single song is amazing to me. low end is arguably equal, and is an important album in the development of hip hop... likewise, the unrefinement of the first album always makes it a treat to return to.
that being said, beats, rhyme, and life killed quest.
the songs were ok - nothing on the level of low end or midnight, but still good and true to the quest, but the problem was all on ali. ali shaheed muhammed must have had two blown eardrums because this album was ALLLL treble and frankly unlistenable. i would gladly re-buy a copy that was mastered properly, but this album was just rubbish because my eardrums would bleed two songs in. likewise, love movement carried on with this trend, and in many ways marked the end of my journey with quest.