What’s your favourite to use? Mine is Fish due to its ease of use and user friendly approach.
Bash is the pepperoni of shell tools being reliable in every field no matter what but I’ve moved to Fish as I wanted to try something different.
So what’s your shell of choice?
I always figured that Ksh / POSIX / Bash shell arrays are kept as they are because anyone with a serious need of arrays ought to be using something better than a scripting language.