I've been using Outliner+ and even if it has a few nice filters, it is not that useful. You can view materials in the outliner (like using XSI Explorer and press M) which is nice, but you can't manipulate them like in Softimage with drag & drop, etc.
Talking about drag & drop, another feature I miss is to manipulate, copy, duplicate, etc properties and parameters with drag & drop. Copy UVs through objects with the same topology is just a drag & drop. This besides what others already mentioned, groups, open and manipulate multiple objects PPGs, Outliner context menu are the first things that come to my head. You don't realize how useful these simple tasks until you start using Maya. As much as I love SI, I'll be using Maya for probably a long time so any improve in that mess is much appreciated. Martin
