What is the hardest game this generation?

[Sullla]

Galaki said:
This should be gauged on the "Normal" difficultly. As anything higher is just AI having more stat boost and your toon nerfed.

 Agreed. If you're trying to find hard games, you have to compare the default difficulties. Otherwise, I can say something stupid like Tetris is the hardest game this generations, because that Japanese guy had to do the part with the invisible blocks.

I'd also vote for Fire Emblem on the Wii. Even the default difficulty is extremely challenging for newcomers. Honestly, it's not a good introduction to the Fire Emblem series (you should try to play the Gamecube FE game first, if possible.)