I think we need to wait and see what happens with both QB's. However, I love Brax but I believe JT may be a better passer at this point. You need to look at the MSU game when Miller made his first or second start to compare Brax to JT. Brax really struggled in that game the same as JT struggled against VT.
When Brax is in, he seems to wait a second too late and the route is over, so he scrambles and usually gets good yards. Also, Herman/Meyer seem to run about 3 plays over and over with Brax.
The best QB's distribute the ball and hit the timing routes ON TIME. A perfect example of an athlete playing QB and a true QB seems to be in Washington where the Skins are a better team with Cousins over RG3.