+minigame collections
+tennis, if somebody finds a good way to move the player.
+racing maybe, i'd like to see a racing simulation that is created for wii and not just a port.
+strategy probably, because the pointer is very useful for that
-i can't tell an exact genre right now, but something that really needs a lot of buttons of course.
but the most important thing is that games like action-adventures and rpgs or platformers can be controlled very well with the wiimote too, just not as good that it feels odd to play it with a normal controller but in my opinion slightly better than with a controller (this opionion is caused on the controls of zelda)