Presently, my list is as follows:
The American Dollar- A Memory Stream
Anathema- Hindsight
Ashes Divide- Keep Telling Myself It's Alright
The Daysleepers- Drowned In A Sea Of Sound
God Is An Astronaut- God Is An Astronaut
M83- Saturdays = Youth
Scar Symmetry- Holographic Universe
Seba- Return To Forever
Sigur Rós- Með Suð Í Eyrum Við Spilum Endalaust
Textures- Silhouettes
Keith Canisius' "Ferris Wheel Makeout" is also a contender, but I have yet to hear the album in its entirety. Of course, this list is only based on the albums I have heard, so it stands to reason that there are many other phenomenal albums that haven't made it to my list only because I don't know about them. So, if anyone knows of any deserving music I didn't list (especially in the ways of shoegaze, post-rock and ambient music), please let me know.