Different, not more talented, although he might be more talented simply due to his role as the protagonist. Depends. MC's skillset is likelier to be the perfect balance between Body and Memory that Ella craves. Ella leans heavily towards Body.Ella can change the atmosphere in her 4th level and MC's abilities are similar to her (he's also possibly more talented based on that one Dead End where he chooses to show his entire skillset).
Due to this, MC's level 5 manifestation might be radically different from that of Ella; Ella's base matter manipulation is likely superior to that of the MC.
Nope, that's the too powerful, too fast end. Revealing the memory reading just has Ella kill MC immediately.Doesn't him telling her about that ability lead to Dead End 3, where Momster 4th is killed by an unknown entity?
She almost certainly can't. Too many things would be nonsensical otherwise, too many plot holes. It's probably going to be the main reason MC will be able to perfectly heal Mia, while Ella couldn't.Moreover, I wonder if she can read memories like the MC does; I doubt it.