Sorry to keep chiming in on this, but what will the Wii version be missing that will be in the PS3 and 360 versions?
The Wii has nowhere near the power of the 360/PS3 so expect significantly dumbed down graphics, framerates, resolutions and textures. Based on what the EA website says, it will also have a more arcade feel to it, using one button actions rather than the more simulation like feel of the 360/PS3 versions.
I would also anticipate that online dynasties/play will not make it into the Wii version simply for the fact that Nintendo's online component is nowhere near solid enough to handle it.
It may have some gimmicky controls that could be fun for a while, but given the choice, I'd go with the next gen version.