Ail is right that the PC is still better at RTS's than the Wii could be, because of the Wii's lack of buttons to quickly hotkey commands. Still, if a developer is willing to use the Wii's pointer in conjunction with voice controls, I could see consoles suddenly equaling their PC counterparts at this genre. Mind you, the technology still isn't perfect, and there'd be a lot of work involved in setting this up, which means there is roughly zero chance of this actually happening, but I think it'd offer some of the best RTS controls yet.
Or am I talking out of my, well, you know?