you tend to ask very naive questions:
will ps3 outsell wii?
will there be a mario killer?
those are question that should not be asked anymore during this so called generation, not to offend PS3 fans, or to gloat. but those 2 questions have been answered for the next 5-10 years, and the answer is no,
the PS3 or 360 have no chance in catching up. there was an article explaining that even with drastic slowdown on the wii part
it was still imposible to catch it ( i couldn't find but i'm sure some one in here has a link to it ),
in terms of a mario killer, add up all the sales of mario games for this generation, and compare it to anything on the ps3 or the 360.
the only one that gives mario a fight is halo
my signature went on strike, it's demanding 3% raise