Best Rock Album
Will Win: Muse "The Resistance"
Should Win: Neil Young "Le Noise"
Best Solo Rock Vocal Performance
Will Win: John Mayer "Crossroads"
Should Win: Neil Young "Angry World"
Commentary: Mayer will likely beat out four better alternatives simply because he was well represented this year in terms of nominations, and the Grammys love him. But watch out for McCartney and Young.
Best Rock Vocal Performance by a Duo/Group w/Vocals
Will Win: Muse "Resistance"
Should Win: The Black Keys "Tigthen Up"
Commentary: Once again, Muse will probably win over the much more-deserving Black Keys. Watch out for Arcade Fire.
Best Alternative Music Album
Should Win/Will Win: Arcade Fire "The Suburbs"
Commentary: This brilliant gem snagged an Album of the Year nod, and while it will most likely not win that category, it should take this one easily.