Lets compare JRPGs and sales per system then:
Xbox 360:
Enchanted Arms: 140,000 (no JP/PAL)
Blue Dragon: 470,000
Eternal Sonata: 220,000 (no PAL)
Culdcept Saga: 70,000 (no PAL)
Kingdom Under Fire: Circle of Doom: 210,000 (still charting, 8k/wk)
Lost Odyssey: 480,000 (still charting, 50k/wk)
Playstation 3:
Enchanted Arms: 130,000 (no JP/PAL)
Folklore: 160,000 (no PAL)
Disgaea 3: 90,000 (no PAL/US, still charting @ 2.4k in JP, unreleased in US/PAL)
Feel free to add a JRPG title not on the list that's relevant (I didn't add a few of the sub-10k RPGs for both the PS3 and X360 that never made it outside of Japan).
But atleast to me, the X360's sales are a bit better thus far: 2 JRPGs sold over 400,000 (with one still +50k/wk), 4 over 200,000 (and 2 still charting).
Back from the dead, I'm afraid.







