In terms of Kid Freindly games for that age group, I would say hands down get a Wii.

The 360 and PS3 are basically selling to 18-35ish gamers. They want the more mature games and also High Def games & of course the bonus of Blue Ray or HDDVD.

Now the kicker.... good luck finding a Wii in a store. Nintendo underestimated the demand for the Wii HUGE!!! From what I gather they are meeting the production numbers but it does not meet the demand. Oh and I am looking for a Wii for the Wife and Son. They really want one. I like my 360.