Actually, I'm gonna disagree with Mister Dean. Nick from BSB sounds terrible live. As well as nearly all of the others, except for AJ and maybe Brian. The guys from NSYNC definitely have a little more talent and not only interested in making little girls scream. JC seems to be the mose promising, I think. He's produced some songs and supposedly spends hours in the studio while his comrades play.
Anyway, I don't care so much who's better or what. BSB sure need to retire pretty soon. I'm getting bored... *yawns*