Conviction
Human Nature
I'm not really sure if we should base-off this match >.> (no offense) I can name things that were bad on the Fox's side and I bet the Ness can name things for the Ness.Well the Ness player in the tournaments I frequent has a pretty good Ness. Ness' PKT2 will end Fox and it'll do it at fairly low percents. Like 45% or so. Back Throw is his kill throw and if you're not careful PKF combos will cause problems. Ness' Bair is also a pain if sweetspotted. Which is something he didn't do too often in my match against him. Grab Ness out of Fairs and punish PKT2's that have an off trajectory and recoveries that don't quite make it to the edge.
I have a video of a match against him so if you want to use that as a basic reference. http://www.youtube.com/watch?v=wvN3xHZs468
I have to stress this though why do all these vids of Fox most people put up their Fox does standing lasers? You know this only leaves you run away due to ending lag of standing lasers, and you run by dodge rolling, don't get me wrong dodge rolling has its places. But actually a simple foxtrot away serves as a good dodge manuver, it gives you more options than a dodge roll. I see the reason you end up dodge rolling is because you place yourself at the end of the stage. Which brings me to 2 points. SHDL gives you a lagless land, and due to this you can actually space you're in mid-range with SHDL, so you won't always end at the edge of the stage. Lastly, you seem to use the dodge roll as your main source of movement, and I already metion you don't have much options out of it.
There are many more things I could say but..... this is the critique thread (if you post there I'll give you the full load down.) Sorry, about this but its been bothering forever.
Now continue on with the match-up discussion.
P.S. I would take ness to: BF,Corneria,Halberd, and Delfino.