Dead Rising will be the difference between early 360 titles and early PS3 titles. I dare say once Dead Rising is released, given time and more exposure, people will begin to buy 360 consoles solely because of the game.
don't forget Halo 3
Standard. 360 has all the positives at the moment.
The only
must have title planned so far for the PS3 is MGS4. That and the fact that they are releasing about a year later than the 360, the price will be much higher, 360 will most likely drop $100 off their current price and that a lot of the other must have titles will be on both consoles will see 360 probably win the battle for the first two years or so.