I have both of these handhelds and am trying to decide which to get rid of and which to keep for emulation. The Go already has custom firmware and a 128gb SD card but it loses connection from time to time because of a poorly connected ribbon cable. The 1001 is on stock firmware and needs a new battery.
I much prefer the form factor of the go. The lighter weight the better imo. l'd go with whichever one feels better to hold.