There's already a lot that's been said about this album on comments before that sum this album very well. Iced Earth can span from thrash, heavy and melodic metal, and still sound unique. I'm judging them by this album alone, as it is well known that Iced Earth have changed their style over the years.
The Dark Saga is a fantastic concept album about the original Spawn Comic and it keeps you gripped until the very end. I would like to say that there is a number of notable songs on the album, but I can't pick just one. All of them are fantastic in their own way. 'A Question of Heaven' is a favourite because it combines some incredible heavy riffs with heart touching melodies. 'The Hunter' will also get your blood pumping from the very start!
The only criticism I have with this album is the drumming. It can be a bit sloppy and out of sync with the other instruments.
If you're into old school Iron Maiden or a bit of Manowar, this is definitely for you.
I would also recommend checking out other albums such as 'Burnt Offerings' and as someone mentioned before, 'Something Wicked This Way Comes'. They are both incredible.