UPDATED TO SHOW PERKS AND FLAWS
Console features:
Xbox 360- Pros New and improved Xbox live, Quasi backward compatibility, more computer like interface, USB ports, wireless controllers, removable hard drives, customisible face plates

Cons: Factories ran out. Video bugs. 20GB Hard drive only, and no Halo 3 yet.
PS3- Pros: Super fast processor, backward compatiblity, free internet

Cons:Technical issues, delayed, Ugly boomrang controller that stabs people, no Halo 3.
"Wii"- Pros- DOWNLOAD ANY GAME MADE BY NINTENDO OF THE INTERNET!!

Cons- Not out yet, takes time to learn how to use remote, and crappy name that can be used as a vulgarity.
EDIT: You don't have to look up the features on the internet, you can post which you think is best out of your opinion.