Nebulous
Legend
My nickname is my curse. I got tired of my bosses rolling 5 or lower on initiative and getting curb-stomped by the PCs. It was unsatisfying for them and frustrating for me. I now dial it in at 20 (and potentially add its dex bonus for some variety) or 20 +/- a d6 if you want some randomness. But yeah an entire d20 range is far too swingy for such an important foe. (less of a problem at higher levels as the bosses generally have a pretty good dex bonus meaning they're at least guaranteed to be in the upper teens). But below level 12 I'd say it's a necessity to bring a suitable boss challenge.
I hear you man. Who goes first in the first round of combat is way too important, and it relies SO much on that damn 1-20 spread, not the piddly dexterity modifier. I like how PF2 uses Perception as the modifier, I might switch to that. I would like to entirely replace the 5e initiative system actually into something more strategic but I'm not sure how to best do that.