I'm worried about potentially overrating songs these days, but I think at least four songs on Deadwing (Arriving Somewhere But Not Here, Mellotron Scratch, The Start of Something Beautiful, Glass Arm Shattering) are all worth a perfect 10/10.
(To clarify, what I mean by "overrating" is, for example, giving a song a 10 when later on I might realize that while I still love the song as much as I did, I feel it's more of a 9.5 or something.)