I have to admit, i prefer fps's, but this game knocked my socks off!
The best game i have for the wii right now, this game is none stop action! it rocks. Altho, at times the graphics can be suspect, this is made up for the shooting and driving controls. You really feel like you're in the game, ducking behind the sofa for cover in gun fights for example :P
This game also makes excellent use of both the Wii Remote + Nuchuck.
If you liked the GTA series, you'll love this, its a must have! =D