Black Sabbath-The Devil You Know was an instant ass kicking.
Megadeth-Endgame took a bit to grow on me but it slays.
Ace Frehley-Anomaly kicked my ass right away
Kiss-Sonic Boom didn't necessarily kick my ass, it just pushed me around a bit. Good disc though.
Ultimatum-Lex Metalis didn't kick my ass either but was a pleasant surprise.
John Mayer-Battle Studies kicked my ass the most, I can't believe I actually like this guy's music. Well, his last two albums anyway.
AC/DC-Backtracks (Ltd. Ed.) was good but I'm bored with all the live rarity stuff.
Switchfoot-Hello Hurricane was easily the biggest disappointment, they hadn't released a weak album since their sophomore effort.