Discs don't self-energize, drums do.
It matters because in order to spin around like a top by pulling the E brake the wheels have to come to a stop in back and not so much in front. Will discs in the rear allow that to happen? Doesn't appear so from what I was reading. Hence no fun factor? Safer but boring.
disks on the rear suck , drums give beter H brake and are beter for hand brake turns
I've never been able to lock up my rear drums on anything but snow or gravel. Even wet pavement doesn't do it. This even after I redid all the braking components with new, and adjusted properly.
By design, drum brakes lock up better than disc brakes. They are designed so the harder you push on the brake, the harder they engage. They are somewhat self-engaging, when the shoes contact the drum, they get "pulled" into the drum even harder, if they are working right.