AutoCAD 3D
I use AutoCAD in Vanilla mode to draw 3D solid models and I love it. There are two keys to working in 3D. Learning to manipulate the UCS and learning to use the XYZ point filters. MAX is still more powerful in some ways but about 4 years ago when I was using max there was no "center" osnap which always amazed me since you usually rotate about the center of object. This was MAX 3.5 and I am sure it is MUCH better now.
Below are the 3 macro point filters I use constantly.
.YZ;NONE;@;
.XZ;NONE;@;
.XY;NONE;@;
These point filters guarantee when you move something it will only move in the axis you want. The most used command in all of AutoCAD, for me, are the XYZ point filters. I will use them 100 or more times every day. I have attached a dwg file that I use for all of my 3D work. It uses 4 paperspace viewports and as you move from viewport to viewport the UCS changes in the upper right viewport so I always have X across the screen and Y up and down. Using this and a bunch of other macros and programs I have written makes work in 3D a piece of cake except for compound curves which I almost never need to do. Just my 2 1/2 cents and hope it helps. Take care, Jack.