I dunno, I've been asking my self the same question, many Death Metal fans don't enjoy Bloodbath, or do but see nothing special to it
like the Miss Teen 2007 South Carolina USA started stating her argument (
http://www.youtube.com/watch?v=lj3iNxZ8Dww):
I personally believe...
it's hard to explain, since the song writing, the production and individual quality of each member is near perfect, maybe that's the problem, it's too close to perfection lol
it has groove, it has slow, mid-tempo and fast parts, melodies, solos, awesome growling and high pitched screaming, not to mention the awesome Gore and Death Metal lyrics
Peter Tagtgren fits perfectly in NMF, true Akerfeldt is the ultimate vocalist for almost any kind of band, but Tagtgren fitted right in
Stillborn Savior is fucking awesome, and Blood Vortex fits perfectly after it, it goes from fast to mid-tempo to end the album in style