Those are the two that always fight it out for me, too. I love Awaken for its unabashed scope. Pipe organ, choir, harp, and bells, none of which are common in rock music and are even rare in prog, all have prominent roles, and they work. That alone amazes me.
I find that I listen to Close to the Edge more often, but that's most because it's more accessible. "Regular" rock instrumentation and more basic song structure. I tend to put on Awaken when I really, really want to get blown away.