Infinite Undiscovery is counted in the 50 points for 360 RPGs (IU).
RRoD is honestly my main complaint about the 360. I'm a sucker for quality. All my old Nintendo systems still work (!) (And I have all Nintendo consoles).
When do these Jasper chipsets become available? And are they completely RRoD free?
Sure 360 is cheaper, but PS3 has a Blu-Ray drive and free online. Not that I really want BR, but free online is something I enjoy greatly on Wii.
So also my more serious conclusion is that I find it very hard to choose. I don't really see the value of buying both. 80% of the games are multiplat and the systemseller for me is RE5 (and Beyond Good & Evil), the exclusives are a nice bonus.