Just the unfiltered numerical data from the pins - I can convert it to what I need in my patch (that's kinda what Max and PD are really good at)...
Or another, perhaps better way to look at it - the numerical data that one can see in the Arduino serial monitor - that is what I want to receive, only I figured there must be a way to separate the data being received on analog pins 0-3, into 4 distinct streams of data, or at least some kind of note in the Arduino code which allows me to separate them out in another software program.
It may be unobtainable, but it seemed kind of simple from what I had read prior to trying it. I'm ok with it not working like that, if anybody has suggestions on ways to get the desired effect (would a multiplexer help? - I'm planning on expanding the instrument anyway once this prototype somewhat does what it should)