I did wonder during Smallville, how other Superman would react to Clark, would they consider him a bit of a failure of a Superman?
I don't think so, since he was supposedly only 24-25 when the series ended, and most versions of Superman don't really adopt the role until their late 20s or so (I think the Donner Superman was something like 34 when he finally got back from his intergalactic training montage with the ghost of Jor-El). And yet by his mid-20s, Smallville
's Clark had already formed the Justice League, established a career at the Planet
, won Lois's heart, and defeated Brainiac, Zod, Checkmate, and Darkseid among others. He did have kind of a slow start, but if anything he's an overacheiver compared to most of his alternate selves.