Most Powerful Fictional Characters

Zeedmilleniumon (most powerful digimon and fictional character overall)

Shadow Lugia (my personal favorite)

Arukadhimon (Super Ultimate)

Ultimate Khaosmon

Mega Darkness Bagramon

Yggdrasill

Safer Sephiroth

Dragon God (infinite multiverses buster and multiversal high level reality warper)

Asura the Destructor

Elder God Demonbane (Multiversal Omnipotent)

The Anti-Spirals

Super Tengen Toppa Gurren Lagan

Chou Grand Zamboa

Mr. Lord Hyperovercharged Super Perfect Mystic Full Power Dark Matter (most powerful Dragonball character by far, an instant all verses, all everythings, etc.. buster, can do absolutely do anything even defy all logic, perfect omnipotence, etc..)

God Spawn or Angelic Spawn (Multiversal Buster)

Featherine Augustus (Multiversal Omnipotent)

Getter Emperor (Multiversal Buster)

Giorno Giovanna (Multiverse Buster)

Haruka Kaminogi (Multiversal Reality Warper)

Chaos King

Franklin Richards

Scarlet Witch

Akhenaten

Apocalypse

Destiny (cosmic entity)

Entropy (cosmic entity)

In Betweener

Master Hate (cosmic entity)

Mephisto

Mistress Love (cosmic entity)

Proteus

High Evolutionary

Quasar

The Celestials

Decreator

Godkiller Armor

Cyttorak

Shuma Gorath

The Infinities (even infinitely transcends the cosmic entity Eternity)

The Great Evil Beast (cosmic entity)

Sise-Neg

The Source (entire DC consciousness)

The Alien Entity

Chakravartin the Creator

Lord Chaos

The Void

The One Above All (most powerful comic books and Marvels character ever)

Yog Sothoth

Unicron

Primus

Superman Prime

Antimonitor

The Omega Weapon

Hydra (strongest mythological creature of all time, gave even Zeus a ran for his ass)

Mother of the Sage of the Six Paths (strongest Naruto character)

Molecule Man

Armageddomon

Alphamon

Armityle the Chaos Phantom

Apocalymon

Chaosmon

Chronomon Holy Mode

Chronus

Fanglongmon

Black Kyurem

White Kyurem

Ethereal Queen (Prime at Hardest)

Orion the Super Megaforce Ranger (most powerful Power Ranger of all time)

Arceus (strongest Pokemon)

Libra of Dohko China (strongest of the 12 gold saints)

Genryusai Shigekuni Yamamoto

Dragon Master Knight

Diaboromon

Divine Serpent

D Reaper

Destroyah

Imperialdramon

Keiser Ghidorah

Kenpachi Zaraki

Lucemon Chaos Mode

Susanoomon

Strike Freedom Gundam (strongest Gundam character ever)

Yubel the Ultimate Nightmare

5 Headed Dragon

Nemesis (All Gems)

Beyonder

Galactus

Ultimate Giga Bowser (strongest super smash brothers character ever)

Mnu

Ultios

Omnimon X

Omega Shenron

Broly

Zeus (strongest saint seiya character)

Tabuu

The Living Tribunal

Yiazmat (strongest Final Fantasy character)

Ssj 4 Vegeto

God of All Religions

Onslaught

Eternity

Abraxas

Master Order

Darkseid

Death

Kronos

Solaris

Solaris (strongest character in Sonic the Hedgehog)

Lucifer Morningstar

Tyrant

Spectre

Imperiex

Dormammu

Adam Warlock

The Q Continuum

The Presence (most powerful DC character)

Protege

Thanos (Heart of the Universe)

Lucy upon unlocking her full brains capacity

Oblivion

Infinity

The Fulcrum

The One (most powerful Transformers character)

Azathoth

Thanos (Infinity Gauntlet)

Man of Miracles

God Man

Popeye with Spinach Powers (can effortlessly break the 4th wall)

Multi Eternity (fusion of all the Multiverse's Eternities in One)

Madoka

Chuck Norris

Eru Lluvatar

The Spaghetti Monster 

Gan the Dark Tower

God (Bruce Almighty)

God Entity (Futurama)

Lord of Nightmares (Multiversal Omnipotent)

Kami Tenchi (Multiversal Omnipotent)

Homura

Haruhi Suzumiyu

Bugs Bunny (strongest toon force character by far, can easily break the 4th wall)

Creator of Light (strongest Yugioh character by far)

The Great Leviathan

Exodia

Knight of Destiny

Zorc of Necrophades

Super Fusion God

Alien X

Sith Emperor Lord Vitiate

Mad Jim Jaspers

Phoenix Force