I just started re-watching Star Trek '09 and was thinking about this. I do like Greenwood's Pike, but it's a different flavor than Mount's. Mount just seems to exude charisma.
I will say Mount has the advantage of screen time, being a main character on Discovery for a season, then featuring prominently in a Short Trek, and now having a full season of his own show. Discovery was enough to probably get him more screen time than Hunter, Kenney, and Greenwood combined. Also having his own show gave us a chance to see the personal side of Pike, as well as how he socializes with his crew.
A point in Hunter's favor is how much of that he conveyed in his turn as Pike. His conversation with Boyce fills in a mound of backstory for him (someone recently pointed out how well it set up the rest of the episode, with the recent disastrous away mission, him wondering if he should leave Starfleet, and his love of horses, all of which are things the Talosians use against him). That one scene in his quarters conveys a hell of a lot of characterization.
I'd say Pike has been a character who has not been done poorly on-screen. Even Kenney with his pained, blank stare did a lot to convey the suffering the character was going through.