I liked Orden Ogan immediately, but after listening to it many times most songs already wore off. It is a solid album, but not one I will be revisiting often. Same goes for Angra to a lesser extent. I did not like Serious Black all that much, but maybe it will grow (Not much of a fan of that type of PM, so that is no surprise).
This Blind Guardian album, while having many, many typical BG elements, is quite different on a few spots. The songs are even more dense than previous work at times (take At the Edge of Time for example, it keeps on building and building), a lot of choruses are not their trademark of overlayering 100 Hansi's and some background vocalists singing the title words of the song with an extra sentence, and the mix is not really clear (and this is a negative, I cannot properly listen to the album in my car or in the train with my in-ears, which sucks).
I think it is absolutely stellar work, but can see why people do not like it. Still, there are many BG trademarks to be found like awesome solo's, epic Hansi vocals (one of his best albums, really. He also sings in some ways he has never done before) and their typical way of composing songs with differing verses whilst keeping a cohesive song (this is why so many BG songs never bore me). I am having a hard time believing that people liking ANATO do not dig the Throne (which for me is a bit of a weak song, but I have to be in the mood for ANATO as well), people liking ATEOT not liking Prophecies and old school fans might really enjoy Doom and Holy Grail. All the other songs differ quite a bit from previous work in many aspects, though, I think.