I agree, too, however, this will NOT be an easy fight for Kenobi. Drallig wasn't the Battle Master for nothing, and who knows why he lost so badly to Anakin, he could have been very tired from fighting Clones or even injured if he ever got hit with a blaster bolt. And the help of Whie and Bene aren't very much help - Whie was caught by surprise and was kileld before Cin even got to Vader. By the time Cin got to Vader, Vader and Bene had already exchanged their two or so saber clashes and Anakin was holding Bene by his mechanical hand. It's likely that only about two seconds after Vader and Cin started fighting Vader snapped Bene's neck with the power of his mechanical hand and then he had Cin alone. So Cin really didn't have any help.