i think its a tie for different reasons
Batista is definitely respected more as a character actor and a good piece to an ensemble cast. I expect that to be his lane. He is the dion waiters of a lot of movies.
Cena is viewed more of a lead and cornerstone of a movie or series. That could change if peacemaker is a total failure or a total success, but right now that is how he is viewed.
I'd say they're both B to B+ players in the industry. Cena could become an A- if peacemaker is a success, and Batista could become one if he gets the right leading role. I don't think he will though and is doing very well in his lane.