Hey guys,
I would probably try and move this out of the Animation Session Forum, but no-biggie.
As with all software packages, there are technical differences in the way that programs handle or package the animation features. Although both Max and Maya work the same way (Timeline, Curve Editor, Dope Sheet), there are subtle differences between how you set keys, how you handle the animation curves, and how you can transfer animation. There are also plug-ins and additional animation tools such as Biped and MotionBuilder which are becoming more integrated into the programs as revisions come out.
Either program you choose will work for animation, but you may be more comfortable with one or the other. For me it’s Maya. Maya is awesome for character animation, and has flexible, easy to use tools that I found intuitive. But, everyone is different.
I would, above all else, make sure you are very familiar and vested in the Principles of Animation. Whether 2D, 3D, Flash, heck and bouncing ball, the principles of animation are going to be what sets yout animation bar, and they will keep you PUSHING the programs to become better and more robust. No automation or toolkit will bring life to a character like an emboldened animator who knows his/her craft.
Oh yeah and get someone who is, or become very familiar with Rigging. A good rig is one of the keys to a successful character.
Good Luck
Woodman