iPOD-
unlimited games from the appstore
most games are free
the ones that cost money aren't that expensive
it's not huge, so you can carry it around
the screen is really sensitive so it breaks easily
you can take pictures with good quality [if it's a 4]
and it isn't heavy
DSi XL-
kinda heavy. you have to hold it with both hands for some stuff,
the games are about $20-$60+
when you finish the games you just start it all over again.
doesn't fit in a pocket
the colors are pretty
the pictures aren't the best quality
ETC ETC. think for yourself. i have an iPOD.