Yes, some people didn't like the 6 stats, but it allows more flexibility, and a lot more viable builds. Even just for warriors, DD builds tended to all end up 2 parts strength, 2 parts agility and 1 part constitution. In BD people have used high strength / low agility characters, etc, that were very different than what I found worked best with my playstyle.
If you lead with the other character, an archer set to aggressive (right click on portrait) is handy for attacking opponents as soon as they come into range (sometimes acting as an early warning system if you stop to do something in your inventory, etc).
I can neither confirm nor deny rumours about the Death Knight.
But if you really want to know...