I would say right now river is one of the most dificult people to battle just like dlow, cause he has a litlle bit of everything, is like he doesnt have a weakness, except colaps i guess hahaha jk
I think when you're in the Finals, Judges are also betting for the Artist's whole performance in battles & the elimination, not just based on the final (just like d-low vs tomazacre). That's why Colaps won, he is way better than River in terms of timing & consistency all throughout. But Colaps had one major mistake in his battle vs vocodah, but still, river has lotssss of minor mistakes all throughout. In conclusion, River hits hard & is powerful, meanwhile, Colaps is consistent, hits hard & powerful.
Barts 2 round was cool but man he did many mistakes and i think he focused a bit to much on countering. River clearly won for me. But Barts first round was pure fire