I think it's too early to say at this point. By this time next year we'll have a clearer idea between releases and announcements. I've never really thought of RPGs as a make or break thing for a console, personally, more like a nice bonus for one you already own.
I can tell you with 99% certainty which console will have most of the FPS, though.
3rd Party Wall of Shame
http://www.nintendoworldreport.com/forums/index.php?topic=30478.msg581036#msg581036