Okay, you asked for something to "prove" to you that Barber could start. Now remember, Barber has started from what I remember one game. The playoff game. I did notice, however, that you didn't mention Barber's first half stats, but as a hater, I can understand why you wouldn't want to do that. You also dismiss the fact that the Giants DL was playing phenomenal, just ask the Patriots.
So, I took a look at some of this year's teams that ran a two-back system for one reason or another. Here's some food for thought:
Dallas
Barber 975 yds, 4.8 ypr, 10 Tds
Jones (the starter) 588, 3.6, 2
Giants
Jacobs (the starter) 1008, 5.0, 4
Ward 602, 4.8, 3
Green Bay
Grant 956, 5.1, 8
Jackson (the starter; injured) 267, 3.6, 1
NE
Mauroney (the starter; injury at beginning of season) 835, 4.5 6
Morris (injured during season) 385, 4.5, 3
Jax
Taylor (the starter) 1202, 5.4, 5
Jones-Drew 768, 4.6, 9
Vikes
Taylor (started the season and games after Peterson injury) 844, 5.4, 7
Peterson 1341, 5.6, 12
So, of the starters listed, only Jacobs and Taylor outgained our backup. Of the backups, only Peterson, the ROY, outgained MBIII. He was also 2nd on this list in TDs.
I'm sure you'll do some more 2:30 a.m. research and come up with another reason why Barber shouldn't be considered the starter. And that's OK; you're entitled to your opinion, regardless how stupid it is.
Good thing BP saw past Romo's lack of experience and made him the starter. Took him four years, but he did it. MBIII would've been his starter, too.