I listened to Black Holes more in the first month after its release than I've listened to HTDAAB in 2 years, and I'm still listening to BH.
I think it's Muse's most accomplished record. I thought Absolution was hard to beat but the other day I listened to OOS, Absolution and Black Holes back-to-back and what I like about Black Holes as a whole is that it's not about Matt's vocals. On Absolution there is so much emphasis on his belting vocals that compared with Black Holes it almost sounds like he's showing off. I like how Black Holes is subtle yet rocks out like crazy at the same time. There's more confidence, it's more about the music than showing off his voice or guitar skills, but without diminishing the brilliance of either. Or something like that.