i can see why ESDF would be better than WASD but most of the people (like me) are just too used to WASD.
I also once bought a Belkin pad because everyone said how awesome it was and that it was way better than a keyboard. But i just couldn´t get used to used to it, it was terrible, even moving felt awkward a 10 level lower player would beat me in pvp because I wasn´t really used to what button to press lol.
So WASD Keyboard + Mouse ftw.
you are supposed to strafe with A and D and not turn with it >_>Seriously though, I use W and S on occasion for forward and backward movement (though I generally use the mouse). I have my A and D bound to other abilities because keyturning is bad.