Moving along 4 dimensions with smooth analog controls is nicer than 2, and using something other than a mouse.
Might be true if that was how it worked. Even with keyboard control, you get three dimensional movement and a mouse gives analogue. What is this 4th dimension you can control, time? Not in a multi-player game unless you're talking about clipping, which isn't really control so much as an approved cheat on output timing.
I only use the keyboard for macro level actions like popping an inventory or map. Otherwise I use a customizable controller and customizable, multi-button mouse in tandem and I will guarantee that I can maneuver in 3D as well as you.
On the lighter side, auto-lock is for pussies.
"Experience has proved that some people indeed know everything." -- Russell Baker