In my opinion, the Wii should have one only two or three comparisons. That's just my opinion, however. Home/PS3 would be the best if more options were available. Oh, and PixelSly... You got owned!
Unfortunately, I decided to purchase Spore. Worst. Decision. Ever. Not only is the gameplay boring, I've found that your creativity is actually limited. Oh well, live and learn...
Something that I would like to add in is that in my opinion, this game is better as a rental than to own. It is an amazing game, for sure, but the fact that it is single-player only means that you simply can't play it forever.