Combat step

Dash doesn't throw you a screen or two to your left. Dash cancels out if you turn around/stand still.
Step fails to meet both of those.

And my keyboard does hate it. So does my computer.

Dash activated for me when I turned too quickly (Left then Right or vice-versa). If I had any amount of lag whatsoever it would delay me too, so if it was during certain times of server instability cough2xexpeventscough, it could potentially kill me if I got hit and tried to pot.

I don't have that issue with Step. It doesn't activate from hitting Left then Right, or vice-versa, and you don't have to space yourself like you do with an Outlaw to accidentally Dash. (As in tapping forward to move a smidge closer to your target when you're sniping or something.)