The Wii is amazing, it's fun in a box. The games are extremely good and it has a flawless, clean feel to it. However if you like gunning down ho's or joining the army, consider a Xbox 260 or a PS3
. Wii games are very adventurous and have a strong Japanese feel to them (which I like). Often the games being by Nintendo themselves mean they are close to perfect (in terms of the code), no silly glitches or limitations.
However there are two things about the Wii which I don't like. The storage is weak, although external storage is in development, a 256MB hard drive may put off developers. The Wii also lacks high definition support. However in terms of fun, it's amazing!