This are some really great feed backs, keep them coming. The animation is in the process of ongoing polish, most of this issues are been look at and worked on. Re guarding the weapon swing speed there is some game play design requirement for the swing speed to be consistent. since you can drag most attacks having different speed during release could make it hard to time and read.
I totally understand from a good animation and realism point of view good full body motion and powerful swing acceleration looks good, its a ongoing struggle to maintain the balance of what looks good and what plays good in game. We will do our best to find a right balance.
The leg movement on attack will be removed while standing still, it is a know bug we will fix soon.
I agree with the run animations, Most of the run animations were done while back when the run speed was much slower, more of walking speed, that got change as the game developed, we are looking to update it soon.
Thanks for the feed back guys!