RG3 is going to be a complete bust for whatever team takes him. As far as "mobile" QB''s go, he is toward the bottom of the pack in terms of skills.
*He is not that fast (he used to be olympic sprinter, but only expected to run 4.4 to 4.5 because of knee injury)
*His decision making is very very poor (I believe he will have a very very very very low wunderlic score).
*He has already had a serious knee injury
*He is too small to be a mobile QB
*Mobile Qb's have not won a SB in a long, long time. Traditional pocket passers, with some ability to move around in the pocket (such as luck) are the Qbs having success in the league. Mobile, inaccurate Qb's with poor decision making are not having success.
*He does not have leadeship abilities.
*He will not be accepted in good ole Indiana.