[Tom4784]

They all have their own plus points.

XBOX
+ Great range of games, lots of exclusives.
+ Argubly the best online service.
+ It's been around longest so it's had more time to grow.

- You have to pay for online
- too much focus on FPS
- Red Ring of death
- Sucky Controller

PS3
+ Less exclusives but better exclusive killer app games (Metal Gear solid, any exclusive FF games ETC)
+ Free online
+ Great interactivity with the PSP.
+ Great controller

- Bleeding exclusives left right and centre.
- Expensive.

WII
+ Great Exclusives
+ More 3rd party support then other consoles
+ Strength of 1st party games
+ Good shopping system
+ Multiple choice of controllers
+ Good for multi-player
+When done right the motion controls are amazing (See RE4)

- Bad graphics (although graphics don't matter to me).
- Sucky online gameplay (It always seems like an afterthought).
- A heavy focus on casual gaming.
- Wiimotes are expensive.

I'd personally say the Xbox from what I've played, but I've not played enough of the PS3 to make a fair judgement. As of late I prefer my PSP and DS.