I personally would go with the Nintendo DS Lite because it's Nintendo, it also has 2 screens and makes gameplay a lot of fun, almost every DS game required use of the touch screen which is a great feature, and if you have game boy advance games you can play those on the DS Lite, so alltogether i would say that the DS has a lot more games and I would say that it is a lot better for all age groups, the PSP is too big for me and it's more expensive.