From reading your posts Scott, I am a bit surprised that you have In Utero on your all-time best album list! I mean, I cannot deny that it was influential, but probably in a bad way. On the major scale, we had Guns n' Roses then Nirvana. Guns n' Roses played good old time rock n' roll. Shredding guitar solos, wailing vocals etc. Then Nirvana came around and now look at rock music.
IMO In Utero could be on a 'Most Influential' post, but not best ever. Of course it's your opinion.