Either one is fine, but when you buy the games please make sure they are appropriate for his age. In the corner sections of games there is a number or a letter. The numbers basically mean for that age and up example. This game is for 3 and up.

http://www.haloshop.vn/images/detailed/11202_jaquette-sonic-generations-...

The letters stand for E Everyone, T Teenagers 13 and up, and M for Mature 18 or up. Example

http://gamerate.net/img/games/991/bigcover.jpg

So please this is the important part, more important than which one, cause a lot of parents get games like Grand Theft Auto for their kids, and it's rated for M or 18 and up.

Or just listen to the other user and get him something like an intrument or something that will be helpful.