Non 5e players
I play 3.x (3.0/.5/PF1e. Folks in my group have different preferences and opinions between the 3, but what I run is mostly 3.5)
We like having a range of options to make characters feel unique.
We like having the game promote tactical movement and positional advantage.
To me, these things help form the groundwork for my own encounter design, suspension of disbelief, and worldbuilding.