As I have been playing through the Beta, I realize that I have pretty much been choosing basic weapons for my characters based on DPS. I know this has kind of been the idea from the developers but it's also a little, hmm, boring I guess.
All this must be taken with a grain of salt because we are still in the Beta phase and all that good stuff...
Let's take the example of Mighty Weapons since I am a Barbarian fan. There is really no incentive to use them. The swing slower and maybe do marginally more damage than regular two-handed weapons. Maybe they could have built-in stat boosters to make them a more attractive/viable option, such as Fury generation increases, or strength increases, etc.
Another example would be the Monk using a Daibo vs. Fist Weapons vs. two axes. The Daibo doesn't give you any more range than the fist weapons (does it?). Neither of them made me want to choose them based on the fact that they were class-specific. I guess at an early stage, there seems like there is no benefit. The only benefit I could see at this point was that if you happened to find a rare/legendary/whatever class-specific item that made it better than whatever you were using at the time.
I'll apologize up front if this is something that has been beaten to death, but I have been trying to keep up on news/changes/forum content and wanted to share.