Resident Evil 4. its so crazy when you play at night by yourself home alone xDDD. can you say "HDTV at a high volume" xDD if you can then might as well say "I Crapped in my Pants!" It is also a challenging, long game that will keep you busy for a while. Plus its 30$. what a bargain! After you storyline and its actually very fun to play over again.
For Mario Party 8, it depends if you like the series or not. If you don't, then don't get this game obviously. but if you do, this game is perfect for the wii and an outstanding addition to the mario party family.
PBR Isn't THAT great. IT IS BEGGING TO HAVE MINI GAMES. Wifi is fun though.
LoZ: Twilight Princess is a MUST BUY. I wouldn't recommend renting it. BUY IT. At first it'll be hard to use the controls, but it will soon become a second nature to you.
Not to offend you TSS
but Sonic: TSC wasn't the best sonic game ever. it feels like sonic games are getting worse and worse everytime. This game is super repetitive. i would recommend renting it rather than buying hibana. if you want the best sonic game, it has got to be Sonic Adventure 2: Battle for the GameCube. Second favorite game for GC [next to super smash bros. melee]
Hope this helped Hibana