Max does have a few features Maya doesn't -- but most people don't USE those features.

Personally I think Autodesk should can 3ds max and upgrade Maya with whatever they like (and hopefully not Gmax the Maya PLE)

Market share isn't performance... look at AMD vs Intel -- across the board Intel's components are more expensive, hotter (as of ~2002) and slower. Intel only wins by obscuring the average computer consumer (aka: Dell buyers) to not knowing what AMD is.