I went with Martinez, who's also bound to get some valuable PT this year. And since you make the point we won't need to rely on Green's arm to win in the Big 10, then why the heck wouldn't you put Martinez, a superior runner with incredible quickness & speed, behind center instead? If you think we don't need Green's arm to win, then I think it can be reasoned we won't need Martinez' arm to win.
Here's the other side - we will need the passing game to succeed b/c we need to keep those Big Ten run defenses honest. Even though our running attack appears to be picking up steam again, we are not the Huskers of the 90s. We need to be able to pass as well as we run (sound familiar?) & if that's the case, I still think Martinez is the man. Green is only a slightly better passer at this point, but Martinez is definitely serviceable. IMO the two things that will ultimately set Martinez apart & make him the better QB are his decision-making & speed. He's an X factor & from what I've seen he's makes quicker decisions & better judgments than Green. That's huge for a QB in this & any other league.
And yes, I am & have always sipped at least a tad of the haterade on Green. I'm just not wild about the guy. He has a lot to prove & I'm not sold b/c he hasn't proven it yet.