As I posted on the madonna album anticipation thread, people who have heard both songs (GMAYL and GGW) say that this one sounds retro kitsch and girls gone wild is dance and modern.
This sounds like an AMAZING song. Anyone who said it was just simply good completely underestimated the hell out of it- just by 10 seconds i can tell this is going to be a fan favorite madonna song. So catchy! So madonna! Shes giving us what no other bitch can