Just my two cents:

Blake
Pros
Poised in the pocket
Senses pressure well and moves instinctively
Crisp and accurate on short and intermediate throws
Commands the team well
Great running ability
Seems to have the trust and respect of his teammates
Has made leaps and bounds from last season and even A-Day this year
Cons
Hasn't thrown very many passes down-field
Sometimes locks onto his receivers
Has thrown a few passes at his receiver's feet when they were wide-open
It's unknown how he'll react to adversity
Decision-making has been poor in the past
He ran one play and the entire team ran another play in at the goal line yesterday, resulting in a fumble

Jake
Pros
Huge arm
Runs well for a big guy
Seems like he is willing to be coached
Mostly goes through his progressions well
Cons
Has trouble getting the play in from the sideline
Sometimes locks onto his receiver
Overthrew easy routes a couple of times
Seemed to get the ball out slower on bubble screens
Took a sack instead of throwing the ball away, costing the team a field goal
Underthrew a couple of passes and then overthrew a couple
It's unknown how the team feels about him

All in all, I'd say that Coker wasn't overhyped on physical talent, but he's struggled mentally to grasp the offense, which is surprising. He's in his own head too much. Coker did seem to improve as the game went along yesterday.

Blake seems comfortable, but we've not seem him tested yet. It will be interesting to see what happens if he's asked to air it out a bit more.