Not a chance!!!
There is no way in hell that Rocky Balboa tops The Wrestler!!!
Although I love the Rocky franchise (well, the first four anyway), it has been parodied & become so cliched over time that the original impact of the story has faded.
The Wrestler however, gives us an in-depth look at the business itself as well as the protagonist, and Rourke's performance is so emotional & personal that we really feel for him when he has to give it all up!!! And finally, when he returns to the ring, the payoff at the end is so rewarding.
Rocky Balboa just doesn't have the gritty, realistic authenticity that The Wrestler has!!
Just my opinion, but that's the way I see it