i randomly chose to watch vid 5. first thing that came to my mind was, where the hell are your turtles? i was unsure if your g&w was even equipped with one; this is his best move and you should abuse it more, you really need to be more agressive with it. you fair WAY to much; save it as a kill move . i also noticed a lot of falling nair. you should be rising with it and juggling rob, combine that with up airs (which i saw none of) and up B for really easy damage. if you want to fall with nair, try fast falling, then follow up to uptilt, then some more nair, this is an easy way to rack up damage on heavy characters. dont imediatly smash when you see rob (or any other char) recovering low, because its NOT gonna connect.
so really, you need work on implementing rising nairs, turtle spam, up airs, and up-b into your game. less ftilt and more dtilt. be more aggressive, dont stand around to much, you gave rob a lot of oppurtunities to just hit you. always try to be in the air; keep moving around.