Slayer master

Might be a bit of a noob question but I’m curious what slayer master I should be using, I was using Steve for the longest and have my block list set up and everything for him, but recently am able to use duradel because I hit 100 combat lvl, I did not know block list didn’t carry over to other slayer masters or I might’ve saved some points for duradel, just curious which slayer master would be better to use??