[In terms of content of lyrics and vocal quality, what song or album...]

I never judge Muse songs based on Matt's vocal solely, for example I like Microcuts not only because of Matt's unique voice, but also its melody and music. I like Matt's screams in Showbiz, Time is Running Out, Plug In Baby, Crying Shame, Shrinking Universe, Hyper Music.

 

Shrinking Universe screams=