Pretty much Mr. Falcon can't hit you if Jigglypuff is CCing.. except w/ an excellently timed Fair, or Dair... Dthrow is indeed quite nasty, and if you wavedash away from his attacks, it will destroy his cadence w/ his next move [due to the fact that all of CFalcon's moves are so prescise]... Dthrow is also [kind of] useful, but Bthrow-->Bair is where it is indeed at.
After Watching Your Video...
-Wavedash more
-Use more of your jumps
-Uair Better
-Rest [maybe]
-Space better
-Listen to more radiohead.
http://www.youtube.com/watch?v=VRlYAAvj0V4&NR
against the Gdorf...
-Combo Better
-Follow Up your combos
-Punish his slowass recovery
-MINDGAMES!
http://www.youtube.com/watch?v=Lp5aRDtDTLs&NR
against the marth...
-DI his tippers, and throws better [up, and away]
-Space.. much better than you currently are..
-Grab more.
Good Day Sir.