By this I do not mean your favorite albums, what I wanna know is which albums are most important, dearest or means the most to you. It could be the album that got you into metal, the album that changed everything you thought you knew about music, the album someone you like gave to you and of course, it can also be your favorite album.

My list:

Metallica - Master of Puppets, Metallica, Load, ReLoad, S&M
MoP has been my favourite song ever since I first heard it when I was 12. That album changed my life and fully got me into Metal, it made me know that Metal is everything for me. The Black Album was a very early album for me, helped me got into the genre and was the second album I bought. The two follow-ups are maybe not the best albums ever but when my family went to Greece and drove around the country in a car my mom had a walkman and a tape with those two albums on, which she gave me. I listened to it and loved it and this was before I got into Metal. S&M was my first live album and I'm such a sucker for both Metallica live and orchestras.

Iron Maiden - Dance of Death, Brave New World, Rock in Rio, Somewhere in Time, Killers
DoD was the very first album I bought. BNW and RiR was the first Metal I liked, the first step to a Metalhead. SiT was one of my first albums and Killers... well, it's such a magical album which was there for me many times.

Children Of Bodom - First four studio albums
All their first four albums helped me become a Metalhead and appreciate more extreme metal. These albums are classics to me and this band means so much for me.

These three bands and their albums are listed first for many reasons. They remind me of a much easier and happier time in my life. But the main reason is because they were the only, and I mean ONLY Metal, I listened too for like 4 years! I thought it didn't exist any more good bands, seriously. But then this band came:

Norther - Dreams of Endless War
Since I heard that these guys would sound like CoB there was no doubt if I should get an album. So I bought DoEW and it changed everything. It made me realise that there exist more bands and so much better Metal out there!

I guess that Norther really helped me become the person I am today, or maybe the Metalhead I am today.
Now the list goes on without any special order.

Dream Theater Images and Words, Metropolis Pt 2: Scene from a Memory
These albums made me see that Metal has so much to offer. DT played music and made me feel in a way I didn't thought was possible.

Cradle Of Filth Damnation and a Day
Because this one made me get into Black Metal. (Don't cry all Black Metal fanboys, I know it's not a Black album... at all )

Nightwish Oceanborn, Wishmaster
Got me into female vocals.