Theres something wrong if you "reckon" that they are better you're full of yourself, the textures alone in PES6 are better. The characters faces are built much more in this.
And if they are better games, then I reckon you've never PLAYED Madden 06 or FIFA 06 for the 360. They were both broken, HORRIBLY. They saw that the machine had more power, and in maddens case buffed the graphics while stat, passing, and netcode were left GIMPED.
FIFA? FIFA just ran like shit all around, in both versions released for 360 last yaer. I expect Quality gameplay in HD this year, next year, after they have established their code and have something to work off of, I expect to see them pump out some better graphics. And real adult comback with the "No, you shut up"