The 360 exclusives tend to sell a lot more than the PS3 exclusives. 360 exclusives do not even have to receive high review scores to sell over 2 million sales ltd. PS3 exclusives have a struggle to sell 1 million copies ltd. 360 exclusives often obtain higher sales totals than PS3 exclusives. Fewer 360 exclusive games than PS3 exclusive games means Microsoft can spend more money on advertising the games to maximise the sales of the 360 exclusive games.
The multi-platform games well the PS3 games have a better chance of matching or outselling its 360 counterpart. The PS3 multi-platform games often have higher attach rates than their 360 counterparts. Number of game sales divided by the total install base is much higher ratio for most PS3 multi-platform games than 360 multi-platform games.