Well, from his trials, his voice lines and those referencing him in the story, Hercules, now a god, had bested Cerberus and Hades on their own turf, did his famous trials like slaying the hydra, and given he was on god tier powers as a DEMIGOD and is now a FULL god, Hercules is likely among the best of his pantheon, at least in terms of brute physical power, which given his passive, amps the nore damage he takes. Sadly beyond some comparisons to other gods, likely scaling from his god status, the two fights we know he's had from lore and his voice lines, and what he can do in game, Hercules has had little of any further feats as any apperances in the story have been brief. So atm he's basically a big beefy dude whos strong to asinine degrees and has solid healing, a club, and a smite god's crazy immortality.