I'm getting the feeling that this will turn into a console war thread.
But let me tell you a couple of things(Being a owner/ex-owner of all 3 consoles) I can say,
Playstation 3..
A good console but like many consoles it has its Flaws, the installation(most games are using back-installation now.
Good) And also its controls are odd, not so much of the main interface of it but the Six-axis. The Six-axis had no purpose what so ever into the PS3 just a little perk to spruce up sales.
Xbox 360..
It has its flaws aswell like the red rings of terror, but these are somewhat rare events(Its not like you buy it and go oh no its red lights in one day). Also it's got a paid online feature, this is honestly not a big problem but to many owners who want FREE Xbox Live.
Wii..
A good little console but the whole idea of motion sensing, is good but can cause some confusions, take a game like Cooking Mama, sometimes you could accidently tilt the controller slightly and then it will do something else.
All I can say is resort to a simpler console, my favourites are..
The SNES, N64, Dreamcast, PS1, PS2, Xbox 1. You don't need the best of graphics to enjoy gaming.