Thank you both. Butler and his senior officers seemed to be made for each other. Both corp commanders and the general in charge seemed to have individual ideas on victory. Whould Sheridan have been a better choice.
Sheridan is a better choice for what exactly? I'll assume you are asking if Sheridan would have made a better choice as one of two corps commanders of the Army of the James since Benjamin Butler had to be the commander of the Army of the James.
Possibly. Sheridan was a better corps commander than Gillmore and W.F. Smith, and would probably give out a far better performance as a commander of an infantry corps than his poor performance as the commander of the Cavalry Corps.
However, Sheridan had a tendency to be insubordinate and disagreeable. Assuming he replaces W.F. Smith, there would be no improvements in the relationships between Butler and his Corps commanders.
Secondly, the greatest cause of failure of the Bermuda Hundred Campaign is still present in the scenario. Benjamin Butler is still in command of the Army of the James. His two corps commanders' suggestion to seize Petersburg early in the campaign was ignored, and a number of opportunities were lost due to lack of aggression from Butler.