Nothing is perfect, I thought I would start a thread listing only the 360's advantages as counter arguments for the disadvantages thread (I'll play the devil's advocate for a change). 
I'll start:
1) Cheapest console gaming entry pricing. (Cheaper than a Wii)
2) Great exclusives not found on any other console. (Kameo, Gears, Halo, Mass Effect, etc)
3) Very extensive community features for communication with friends.
4) Great console to fit within a home with many other Microsoft products.
5) Has USB port at the back of the console.
6) XNA, easy to use community development.
7) Very often better versions of multi-platform games, especially older ones.
8) Now more cheaply priced games available than for the PS3.
9) Lots of headset users.
10) Controller more comfortable for many people with big hands.
