Black Cat (Marvel), Catman, Human Fly II (the stuntman, not the bug guy), Killer Shrike, Leapfrog, Frog Man, Snowbird (Alpha Flight), Spider-Woman I, II and III, Tarantula
Lillith (Dracula’s daughter), Ghost Rider I, Night Rider
Snowbird again, Hercules, Wendigo
Dumb Bunny, Awkwardman (Inferior Five)
Spitfire (New Universe), Arthur (Tick’s sidekick), Beetle
Awkwardman again
Madame Rogue (Doom Patrol Villain)
Human Torch I, Ultron, Jocasta, Machine Man
Psylocke, Mentallo, Psi-Force (New Universe), Psimon
Dr Polaris, Doctor Light, Magenta, Living Laser, Klaw
Shrinking Violet
White Feather (Inferior Five)
Captain Carrot and his Amazing Zoo Crew, The Vishanti
Alternate Timelines: Phoenix (Rachel Summers), X, Vance Astro I, Deathlok
Cosmic/Godlike/Omnipotent - Thanos, The Watcher, Phantom Stranger, Guardians of OA, Zeus, The Spectre, Captain Marvel/Mar-Vell, Galactus, Galactus’ heralds (incl. Silver Surfer), the Celestials, Asgardians, The Beyonder, Lord Order/Master Chaos, Lords of Order and Chaos, Dr. Fate, the Endless, the Living Tribunal, the In-Betweener
Note - I lumped Dr. Fate in with the above category because in some incarnations he was considered almost/as powerful as the Spectre and Phantom Stranger