Bridgewater has great arm strength. Accurate, big QB, threads the needle so to speak so nicely, and makes hard throws look easy. He is not the fastest QB, and over throws too much, and under pressure a lot. But he is the top QB prospect, a consensus 1st overall pick.
Murray clearly has an NFL arm, he is strong, athletic, smart, instinctive, and calm. Shows signs of great plays, and has no problems with short passes. But he not overally accurate. He struggles against top level. He dominates lower level competition, he also makes bad decisions under pressure, and overthrows receivers from time to time.
Carr has good accuracy, good size, and speed. Dominated lower FBS schools. He did stuggle in their bowl game against USC, but he is a good prospect. He does over and under throw receivers at time. He has a tendency to throw into double coverage.
Matthews has great side, good accuracy, and a good arm strength. Slower QB, and not a running QB.
Garoppolo has good size, accurate QB, and good arm strength. He does over throw at times, and isnÌ¥t the fastest QB.
Boyd has good arm strength, good arm overall. Makes hard throws look easy. Good at short and easy throws. He could be a product of the system, he has always had great WRs to throw to. But he should be a early 2nd round pick come this May.
McCarron is a big tall QB, with decent speed, and good accuracy. But he may be a product of the system. Overall he is a solid prospect, who would be a great #2 QB.