Oh boy I thought this was actually being talked about as an upcoming fight. Prime Rios it would definitely be a very interesting all action fight.
Rios is beyond shot. He was already badly faded, then the Garcia KO effectively finished his career. I'd have no interest in seeing him in Baranchyk at this point.
I like Baranchyk in this one. While certainly not a technician by any means, IB has a better engine and is physically stronger than Rios.