One of the biggest pains for me recently is that the Dynamic Weights palette often completely forgets which object/figure is currently selected in terms of groups available for "restrict to". The only semi-reliable way I've found to make it remember which figure is selected (and by extension which groups/materials should be shown in the drop-down) is to open the Group Editor palette and then select a body part. Even then it doesn't always work.

A similar thing also happens with the animation set drop-down (failing to list the animation sets in the drop-down so you can't change animation set).

This is on the Mac version btw.

So please let's get lots of these bugs and usability issues addressed before any big fancy new features.