NKOTB for sure is my fav, also loved Backstreet Boys.
Back then I think Call It What You Want was my fav New Kids song, now its probably Summertime.
And I love Don't Turn Out the Lights by New Kids & Backstreet Boys.
http://www.youtube.com/watch?v=Pgie3qJibhE
And I just went to see them about a month ago and it was the most fun I think I've ever had.