I am going to leave the % things behind.
Back to OP, i would like it to be a little bit more powerful, it is not like i am a graphics whore, but i want it to be more "future-proof" than the Wii. I know the Game Cube was more powerful and it was abandoned in its 3-4 year, but thats a different story.
I also want it to have a real PSN or Xbox Live experience, the FC were OK back in 2006, it was bittersweet with the 3DS in 2011, but it would be awful in 2012.