Hi Mick:
I've looked at Blender half a dozen times and it always comes up pure gibberish to me. It is almost certainly better then Gmax but it isn't logically set up. Nothing is labeled in a manner that intuitively gives you some idea as to what it is and what it does. Plus I'm too darn old and set in my ways to try and learn another headache inducing 3D graphics program.
One final thought (which I don't think most folks consider). After 10 years with Gmax - switching to Blender isn't just a matter of learning Blender - its also a matter of un-learning Gmax. Every time I would look at something in Blender I would automatically think in Gmax terms and that won't work worth a hoot.
Ben