Prediction, in the way that hipster is, Backstreet Boys will eventually win out because everyone finally admitted to liking JT and by liking JT you have to have *always* liked him there for you like N*Sync too. Because that made N*Sync the popular boy band of that era they lose all hipster cred and Backstreet Boys are the de facto winners.
Now to vote.
*post vote*
Wellllllllll looky here, 15 to 8 for Backstreet Boys