Across fan-theory threads, the question of who is the strongest fictional character turns into a delightful mess of definitions, scales, and stubborn fandom pride. I tend to break it down into categories in my head: narrative omnipotents, cosmological entities, and ridiculously scaled punch-heroes. On the narrative-omnipotent side you get figures like the creator-author concept — the idea that the author or an explicit in-universe cosmic writer trumps everything because they literally define reality. That’s why folks drag out 'Featherine' from 'Umineko' or metatextual beings from 'Homestuck' as top contenders; their power operates on the level of rewriting fiction itself.
Cosmological heavyweights are the classics — think of beings like Azathoth-level entities from Lovecraftian
mythos or the cosmic placeholders that appear across multiple mythologies and universes. In mainstream comic debates people often cite 'One Above All' style figures in Marvel, or 'The Presence' in DC, because they are explicitly omnipotent within their respective mythos. Then you have the bureaucratic intermediaries like
the living tribunal who still stomp almost everything on a multiversal scale.
My take? The “strongest” depends on the rules you accept for the debate. If feats matter, some characters with documented universe-smashing demonstrations win. If narrative supremacy matters, then metafictional writers own the throne. I
love reading both sides — seeing someone try to logically scale 'Zeno' from 'Dragon Ball' up against abstract conceptual beings makes me grin — but personally I side with the meta angle: a character who can change the story itself will usually outclass pure-power feats, and that twist always feels wonderfully unfair in the best way.