I give up. All these albums (up to this point) are so good it's really tough for me to pick a best. Most of the time I pick the song that I feel like listening to at that moment. I picked Infinite Dreams because I've always liked the way it starts off slow, then very slowing it progresses to very fast. Yeah, yeah, yeah, I know, I know, 7th does that too...and that's a great song too!
Historical Fact: Moonchild was recorded on the 1st take.