This is starting to get funny :)
The console with the most GigaFlops turns out to be the Giantic Flop...
Anyway, in games you have a kind of timevariant behaviour. You cannot calculate events in the future because you have an external input from the gamer.
So even if you would have a supercomputer with multiple teraflops it still isn't sure you'll have the most beautifull games.
And that's the real problem, the Cell is made for supercomputer task (proteine folding anyone), that doesn't mean it's great for games...