Overall, the Backstreet Boys have achieved significant success in the music industry. They were formed in 1993 and have sold over 130 million records worldwide, making them one of the best-selling boy bands of all time. They have also won numerous awards and accolades, including multiple Grammy nominations.
Their popularity can be attributed to their catchy pop music, well-choreographed dance routines, and the appeal of their personalities and image. The band's members - Nick Carter, Kevin Richardson, Brian Littrell, AJ McLean, and Howie Dorough - have enjoyed a long and successful career together.
However, it is important to remember that musical preferences are highly subjective and vary among individuals. What one person considers to be the best may not be the same for someone else. There are many other talented and successful boy bands that have emerged over the years, each with their own unique style and appeal. Ultimately, the choice of who the "best" is remains a matter of personal opinion.