I don't have all the AA releases yet, so my list of favorites will be a little limited compared to the long-time fan. I bought Once Sent From the Golden Hall off of eBay, and am waiting on that to arrive. I received The Crusher a couple weeks ago, and already had Fate of Norns and Vs The World. With that said, my favorites include:
Thousand Years of Oppression
Down the Slopes of Death
Masters of War
Where Silent Gods Stand Guard
And Soon the World Will Cease to Be
The Sound of Eight Hooves
Death in Fire
It's not that I don't like the other tunes, these are just the favorites. I can't think of any AA song that I simply do not like. I just like these more than the others.