After some comparisons with the Wii and PS3, I went for an Xbox360 too and so far I'm very happy about it.

-Intel conroe
-Prices drop
-Mods
-Free online play
-Vista
-Faster hard drive/readers
-DirectX 10
-New games are often 10$-20$ less than on console
-Better graphics
-Better Strategy/RTS games
-Greater selection of games
-More ways to tweak stuff

Nuff said

I added and rated all the games I ever purchased($) or someone else bought for me($).  I had a lot of fun with most of these titles as I always carefully check if a game seems good before buying it.

I just finished MGS 3 in extreme mode without special item this early morning.  The game was a great experience in extreme mode, way better and challenging than normal.  I highly recommend this mode to anyone who really want to try this game the way it was meant to be.