I don't really have to explain the question, do I?

My answer then? Well, I'll give you a whole list:
1. To Mega Therion
A killer album, amazing Avantgarde Thrash metal! Tom's warrior voice is probably heavier than ever, same thing with the riffs and the drums. Amazing intro song to the album, an experimental instrumental song (no Danse Macabre though) and some orchestral arrangements and even female vocals. Everything fits perfectly and the whole album runs smooth. The awesome album cover painted by HR Giger deserves a topic of its own.

2. Monotheist
Yes, their latest album! I'd consider it to be Alternative Gothic Doom metal, it's a very hard album to categorize. Sometimes it's so slow, still very heavy, and doomy and other times it's fast and catchy, real headbangabillity! Simple but destructive riffs and of course the warrior voice which I love so much! A worthy follow-up too Into the Pandemonium, although it's a new sound. A dirty sound. But this is an album worthy standing next to their three first albums in my collection!

3. Morbid Tales
Hard Avantgarde Thrash metal? Maybe? This album is a must for all Extreme metal fans. Ghostly intro to an album full of tough, solid and original songs! A good mix between thrashy and doomy tunes, every song feels right. Do I need to say more?

4. Into the Pandemonium
THE Avantgarde metal album, with thrash influences of course. An insanely catchy cover of Mexican Radio, beautiful instrumental parts and songs and female vocals. All the experimental stuff they used at To Mega Therion they now took to the edge, and did it real good! Mostly an amazing album, during its best moments it reaches perfection but it also contains one of the worst songs I've ever heard, named One in Ther Pride. I won't comment it more than that. And again, a great and beautiful album cover!

5. Vanity/Nemesis
Either you find it to be underestimated or to be insanely boring. Well, if I had to choose one of those sides I'd certainly take the second one. The warrior voice is gone, trying to be more melodic and reach more fans. I hate it, it almost hurts. Boring metal, neither fast nor slow. It has some good songs, and that makes me consider the album to not be bad but certainly not good. It's just boring, doesn't say anything really.

6. Cold Lake
Duuh! What did you think? Top three? Of course I consider this to be their worst album. I've only heard it once, and it was sad. Sad to hear these Extreme metal gods play Glam rock! And it's not good Glam rock, no it's way below standard! I don't care what people say to their defence, all I know is that Fischer tried to save them by release the album under another name. Due to economical reasons that was not an option. Fischer murdered Celtic Frost with this album and then raped the corpse when releasing Vanity/Nemesis. Although the ressurection of the band was phenomenal, Cold Lake and Vanity/Nemesis will always be there as big scars on their body.