I would like to see more 'attachment points' for the avatar accessories.
Currently we only have a few mostly on the upper body and on the right side of the avatar.
Avatar accessories are good for the new users as they don't have to deal with rigging and weight painting.
Attachment points for the left side, upper arms, waist, upper and lower legs.
Being able to attach more than one accessory from the same category.
I would also like to see the ability to adjust the position, rotation, and scale of accessories to allow some customization would be great.