JT's release is certainly quicker and he throws from a higher slot, but he doesn't have the pure laser like Braxton.
On the ground, JT has a very different running style than Brax. He has short, choppy strides and he runs with his shoulders behind his feet. Braxton runs with short strides, but he runs with his shoulders more in front of his feet with higher knee drive, giving him more of the 5-10 yard acceleration. I like Barrett's style though because he's going to get us a lot of first downs with that vision and side-to-side movement. Very quick one-cut move.
To say that he's as talented as Braxton may be a stretch though.