Star Ocean 4: The Last Hope.
I think everyone see the trend, JRPG = 360.
Just look at the Xbox 360 JRPG offering:
The Last Remnant
Tales of Vesperia
Infinite Undiscovery
Lost Odyssey
Eternal Sonata
Spectral Force 3
Final Fantasy 13
Blue Dragon
Final Fantasy 11
Enchanted Arms
Star Ocean 4: The Last Hope
WKC will have average sales, just like Valkyria Chronicles.
Valkyria Chronicles (Japan First Week sales) = 78,038 ... on PS3
Tales of Vesperia (Japan First Week sales) = 106,421 ... on 360
The Last Remnant (Japan First Week sales) = 105,196 ... on the fuckin 360!! in Japan...
Unfinite Discovery (Japan First Week sales) = 89,958 ... again ...on 360 (albeit bad reviews)
It says it all...