Literally: Guitar Hero 3- beat it on Medium and know to no even attempt to beat it on hard. They made it too hard. You have to have abnormal finger speed to do this game even on hard.
Lately: Call of Duty 4- really fun. Must own for any fans of shooter games.
Not really. It does take practice at first but play a few easy songs on hard and you'll be surprised. I used to think the way you did but I was like, f*ck it. Played it on hard, I got down some of those tough combos that got myself saying, "did I actually get that?" Now I play on expert and I'm beating the gnarly songs like One(Metallica), Cliffs of Dover(Eric Johnson), Before I Forget (Slipknot), etc. All on expert. And that's when the game gets really fun. I still haven't beaten Dragonforce yet. That one's way crazy.
Wii Sports - Only got my Wii a matter of hours ago for Xmas, so been playing that, pretty good fun. My Dad got Guitar Hero 3 so I will probably play that later.
I'll be getting Mario Strikers Charged Football for its online games in a day or 2.
Strikers is really fun online...
Super Mario Galaxy absolutely takes the cake. I originally bought a Wii to get Smash Bros. Brawl when it finally came out, but I'm so glad I got it now too because now I have Galaxy. This game is absolutely insane!!!
Xbox 360: Rock Band
PlayStation 3: Qix Neo (PS1 game)
Wii: Super Mario Galaxy / Geometry Wars -- alternating
Nintendo 64: Goemon
Super Nintendo: Super 8 converter with Illusion of Gaia and Recca
Saturn (Japan): Battle Garegga
Saturn (USA): Shinobi Legions
Dreamcast: Border Down
Turbo Duo: Spriggan
Genesis: Power Base converter with Time Soldiers
Neo Geo AES: EMPTY
X'eye: Ultimate Qix
PlayStation 2 (USA): Taito Legends 2
PlayStation 2 (Japan): DoDonpachi
Xbox: Taito Legends