Wow. This is actually a tough decision mainly because every time the Cowboys lose, the fans will always blame Romo. Some of the times, it is not his fault. For example, if the Cowboys are up 20-17 with the Giants holding the ball, the Cowboys defenses commits a horrible gaffe and allows a 40 yard TD to Victor Cruz. Then it would be up to Romo to create one final drive. From my perspective, if he fails, the blame should not be on him because he put his team in a winning position but the defense messed up. So this choice can be a matter perspective. (Note: I am NOT a Cowboys fan).
The Vick choice is more straightforward. Because of all the criticism Romo gets, I do think it is more likely Vick will start every game. Now, will he be completely healthy? No.