Firstly its Ps3 not Pes3.
Secondly dont be so ignorant. Your comparing one console to another thats not out yet. I love my 360, but telling people to buy one console over another, even though youve never used it, is illogical.
Gun runner, ps3 will not be better graphically then the 360. That is sony hype campaign at its best, in fact it was discovered that one of its games at e3. (Assasin's creed) which was "visually impressive" was running of 360 hardware, hidden underneath the cabinet.
I can assure you that there is no solid proof that ps3 is better graphically then 360 at all. Some people belive this due to the price, however its due to the blu ray drive they have stuck in. In fact many develpoers, claim its vice versa, who HAVE used it.
However it would be best to wait to see the games at ps3 launch, before making claims.