I have been playing ISS/PES for 10 years until this year when PES6 on Xbox 360 just sucked. I was slowly becoming disillusioned anyway with PES and this incarnation was going to be the dealbreaker for me. There is so much still wrong with it when they had a real chance to completely evolve for the next generation. This was £50 on release day and was barely different from Pro Evo 5 on the PS2. The audacity to release this half @rsed 'sequel' is beyond words.
I still have my PS2 and when I want to play a PES game I'll play PES5 on that.
I wasn't going to bother with Fifa 07 on the 360 until I saw a free demo download on marketplace and I really couldn't believe how good it was. I thought there had to be a catch when I bought the game but there wasn't, and on xbox live it is amazing. Lag free, 2 against 2 games are easy to come by, hardly like my 5 attempts in a row to get a 1 on 1 game on Pro Evo and never even reached kick off.
I should point out that I no longer have the time in my life to get really into Master League type stuff so I can't comment on which is best. These days I like to switch on for up to an hour for a few online games then go and do something else, and with Fifa on the 360 that is perfect.
I also know that graphics don't make a game but they do help and they are, without exaggeration, 5 times better than those in Pro Evo, and the animation is unparalleled in any game I have ever played, and I really mean that. It looks absolutely blinding, the ball movement is amazing and they have got the balance just right.
Pro Evo should hand over the crown then work double hard to beat Fifa now. Can't wait for next years' efforts.