Completely disagree. Vick is a great athlete who can throw the ball. RGIII is a great athlete that is also a good QB. He has more than just a strong arm, he is smart, accurate and composed. I wouldn't describe Vick as any of those.
I don't think Vick could run the Zone Read Option as often as RGIII does and make the right decision as often as he does. He would want to keep it and make the big play every time instead of taking the 4-5 yard gain the defence is giving the RB.
I think he would have done that earlier on in his career more but now he runs less because he already has a long injury history and doesn't want to expose himself to big hits.
The problem with Vick has always been that he is not a very intelligent qb capable of reading defenses and making the correct adjustments pre-snap to adjust the offence.
But then again Cam Newton isn't the brightest guy either and he runs the option pretty well. So I think Vick could also do well in a similar system having matured and realized he only has a certain amount of years left as a starting qb and realizing finally perhaps that he has to play smart.