Last place would be the Xeno. We have some tb teammates that have this bat now for a few months and I think it has made them less of a threat.
My opinion is that folks are attracted to the new sound and think it's doing something special for them, but in the end wind up making metions like in one of the threads above where daddy says "I really thought DD would be hitting it further...."
Just my unscientific opinion.
I have had the exact opposite experience. 6 out of 13 players on our 10U team are swinging DD's 30/20 Xeno with excellent results. The sound is annoying, but watching our opponents' outfielders chasing all the line drives certainly isn't!