The 3 main consoles have got different audiences
Wii- although it is fun when you have friends over it is mostly made for little kids and people with too much energy. the bad game selection shows what i am talking about, their is only 2 decent shooters and still its hard enough to shoot the control design
PS3- you may be thinking that the PS3 has got everything, and it does. thats why the only person that would spend over $1000 on a gaming console would have to be a full on gamer that has nothing better to spend his or her money.
Xbox360- this one is the average Joe of the pack. it's well priced and offers a range of games that is made for the child to the bloodthirsty gamer. BUT. its bad construction has lead to problems of the 3 red lights of doom. and i don't want to spend $600 on a console that will break as soon as the warranty runs out.
Wii- 6
PS3-7
XBOX360-8