Horror Show for me. I don't like the vocals particularly on the first two releases, plus the songwriting wasn't quite up to full potential....although tracks like Iced Earth and Travel In Stygian are definately awesome.
I thought Burnt Offerings for obvious reasons, but decided the middle of the album was slightly lacklustre.
I immediately disregarded Dark Saga. It's got about 4 tracks that rate amongst Iced Earth's most awesome and kickass songs, but the majority of that album is mediocre and boring. Especially the first half. BLAH.
Something Wicked is truly kickass. It's got Stand Alone, the trilogy, and some good ballad type stuff, but I eventually decided no because the heavy song/soft song alternating album structure just doesn't work. it sounds contrived and repetative, and amongst the awesome songs, there's still filler creeping in from Dark Sage.
I chose Horror Show because every single song on that album is memorable, it's got a strong driving theme, and it's easily got the most thought-out lyrics of any IE release to date.
So...there I go. =D