Well what ecxactly do you like about the Nightfall in Middle earth album??
i mean it is a conceptual album, fantasy album, and one with a lot of virtuosity on the composition..
I have all the Blind Guardian cd´s, and my favoriste is indeed Imaginations from the other side.. but i would recomend that you see what do you want look...
Batallions of fear - Speed, trash like metal, with of course Fantasy and lord of the rings stuff
Follow the blind - Almost same as above a little better in composition, and it have one of the greatest song from them "Vallhala"
Tales from the twillight hall - Well the lord of the rings hymn is here, it has a lot more composition merit.. a very good album overall.
Somewhere far beyond - More fantasy and melodic composition here it leaves a bit the heaviest part of the band, and it has one of my favorite songs too " Time What Is Time" and of course another fantasy hymn "The Bard song - in the forest".
Imaginations from the other side - My favorite album, it combines all the aspects of Blind guardian, heavy, melodic, glorious, and youget merged into the lyrics as it was you who wrote them, i cant say i love one song in particular i love all.
Nightfall in middle earth - Well you listened to it, great album but its more like an opera, but one of the best ever.
so you choose what you want, sorry for the big post, i hope it can be of help.. also if i have to say it i will.. it would be better to buy all them at once you will eventually do that