I love HCE a lot, and Raven to me is still his most cohesive, complete work and truly one of the only concept albums I can sit through entirely and not notice that I went through an album. But Grace is still my absolute favorite because of both the cohesiveness and the fact that I can pick out any song on the album and listen to it alone and still love it just as much as listening to the album or picking any other random song. It's also got one of the best bonus discs of all the timelines. Insurgents was a fantastic start and I love all the songs, it's just that I love the songs on Grace a bit more. With the glaring, massive exception of Veneno, which will make me cry every motherfucking time.
I dunno why the simplicity of The Map hits me so hard, but I love that song so fucking much. It's one of the most relaxing yet eerie, dreary songs there is, I think. I'm prone to those types of instrumentals though (and instrumentals in general, if done the way I like 'em).