For me, storage options is more important than power. As long as is more powerful than wii-u I am fine with it, only worried about storage options since I would like to buy digital and would like to see remaster of old wii and wii-u games that I could buy in bulk.
Having never had a nintendo console since the original fat gameboy, having the oportunity to play all nintendo games I might have missed would be a instant buy for me.