Which killer has the worst teachables?

Luciferr_2nd

https://forum.deadbydaylight.com/en/discussion/comment/2316431#Comment_2316431

I play every killer, got everyone p3 level 50

I find it hard to see the effect of Surge when i use it, i feel like its unclear how much time it actually saves you. Because like i said, when i play survivor, surge never stops me from doing a gen.