At the current state in my opinion, the Wiimote is better for FPS games than dual analog controllers. While some may be used to the dual analog scheme, I have yet to see a valid argument why it is better (or ever will be better).
Compared to the mouse + keyboard, the Wii is much worse due to the fact that it is not accurate enough and that you have to hold your hand up and it becomes tiring after awhile (1-2 hours). Does it have the potential to be better in the long run? Yes I am pretty sure it does since the analog stick in the nunchuck is way better than the asdw in the keyboard. But is it now? no.
Regarding RTS games, dual analog really are horrible, and the Wiimote is miles better, but completly useless compared to a mouse and keyboard because it is not (cannot?) be precise enough.







