Quote Originally Posted by Alastor View Post
Actually, as a rebuttal, I've tried both clicking and full keyboard methods in WoW, and I've been immensely more successful as a clicker. This is a personal thing, of course. A new player who has no idea what their abilities do or where they are is going to take a long time with a mouse, searching for the abilities. As a practiced player, I never had any issues keeping up with keyboard players. Furthermore, the mouse has become a very viable option due to the addition of add-ons that allow you to move your abilities across the screen and the wide-spread use of gaming mouses like the Naga, which have the extra buttons. I use the keyboard with my right hand for movement, targeting, and push-to-talk, but my mouse is my number one tool when it comes to WoW.
I'd hate to turn this into a WoW debate from 2005, but this is just mostly nonsense, so I'm going to post a rebuttal anyway. The reason why I would always be behind the back of a clicker was because they controlled the character's rotation with the keyboard rather than the mouse. This made them turn very slowly as opposed to the near instant 180 degree turn of a mouse. The reason they were forced to do so is that the mouse controlled ability use and you couldn't mouse turn and click an ability at the same time.

Abilities bound to mouse buttons are a legitimate reason to trigger abilities using the mouse (I did this too) but that's not the same thing as clicking at the graphical interface. The key is having your abilities behind a single button press available at all times while simultaneously retaining maximum mobility control. Because of the number of needed commands, I don't believe it is possible to achieve this using only a mouse even if it has a ton of programmable buttons, so keyboard hotkeys are necessary. Especially hunters needed to be able to jump, turn around mid-jump to fire an ability and land facing their original running direction and this maneuver is physically impossible to perform if clicking is involved.

Also, there never were any top competitive PVPers that clicked their abilities.