I couldn't care less what people use, the more that use heavy bats the better as I prefer lighter ones. However, I'm only a 2.9/2.10 guy so it's not that light really anyway.
From very simple deduction of going off who I know in real life (pro game and what they do is so far removed from amateurs it's pointless comparing ) ..
General rule
Heavy bat means a hitter
Lighter bat means technical player
Doesn't mean all slog but generally they'll hit through the line and a lot more in the air etc. Lighter ones tend to play more on the ground, wrists and touch are their skills.
Hey, the beauty of this sport used to be that there is a place for everyone's skills.. A place for the blocker, the nurdler, the slogger, the hitters and then the one guy who seemingly at that level can do it all. Times have passed/passing so the game is killing off a few types but hey ho.. As mr Crowe points out, it's all about 2020 now and hitting /slogging rules .
On another point, in the cricket paper today Paul Nixon mentions that most of the guys now playing 2020'wouod be laughed at if they asked for a pro contract before 2020.. Now they are rich and playing Fc cricket..
Heavy bats will dominate