Since I would like to burn all members of each "band" listed...I will make my selection purely on the females I'm aware they have banged.
A) All of the backstreet boys are gay...so they lose by default.
2) Nick whatever his name is banged Jessica Simpson...she is amazingly stupid...but had a heavenly body at the time.
D) Justin Timberlake is still banging Jessica Biel who is an unbelievably hot (although strong than a bull)...and he's pretty damn funny on SNL...
So I go for 'NSYNC...they only deserve 2nd degree burns.