Ipod classic Vs ipod touch.

PLZ say some information regaring to ipod classic and ipod touch.

Ipod classic have huge memory size ( 80 and 160 GB ), but doesn' have wifi feature and small screen.
Ipod touch have small memory size ( 16 Gb ), but it have Wi fi feature and bigger screen.

80gb vs 16 GB, is it fair to differentiate?

The touch can do way more but classic has more memory. So it depends on what u want out of ur iPod