Definitive Band of Your Generation
I was a child of the 80's. Class of '89.
If I had to pick ONE band that was the most influential of that time I would have to say it was U2. The Joshua Tree was our Darkside of the Moon or White Album.
As far as individual artists I would probably vote Madonna over MJ. Madonna had more hits, created overall more controversy and was more news worthy. Michael was pretty benign during his peak in the 80's. He didn't get weird until years after the Thriller album.
How about you?
Ya gotta pick just one.