After reading these numerous posts, the way I understand it is:
The processors in the Playstation 3, and Xbox 360, create artificial intelligence, and physics. An increase in complicated reactions is also possible.
The Playstation 3 has twice as much processing power, because of the Cell Processor, but since one of the processors is "special," for whatever that means, it doesn't have as much processing power as it could have. Weird how something "special" could be a bad thing.
The Playstation 3's processing power if difficult to program with, and costs a lot of money. More processing power lets you have more characters on screen, performing differently.
At the end, the Xbox 360, and Playstation 3, have their strengths and weaknesses, but are very similar in many ways. They focus more on graphics than anything else. At the end, just go with the Wii. I'm sure you wont be dissapointed.







