Comment on Max/MSP

In short, can someone have a go at defining the key differences between Max/MSP and Reaktor. I can't make up my mind as to which I'll choose...

I'm computer literate and would probably know my way around both of these apps (that is, the modular approach to making sound). I'm mostly interested in making little audio gizmos for various experimental sound design purposes (feature film stuff, game sound, etc.).

What's the key selling points of them both? Where does each of them excel and fall short of the other?