IMO I think Air-Walker the Original was pretty cool
Air-Walker
Intelligence: Above Normal (5/10)
Strength: Superhuman Class 100 (11/12)
Flight Speed: Warp Speed (12/12)
Stamina: Godlike (9/10)
Durability: Godlike (13/14)
Agility: Enhanced Human (5/7)
Reflexes: Enhanced Human (5/7)
Fighting Skills: Xandarian Nova Corps training
Special Skills/Abilities: Familiarity with advanced alien technology; interstellar navigation
Superhuman physical powers: The ability to manipulate cosmic energy and convert it for a variety of uses, including the above listed attributes, as well as projection of heat, concussive force, magnetism, electricity, molecular re-arrangement and anti-gravity. Plus, the ability to survive the rigors of the vacuum of space indefinitely, as well as traverse hyperspace unaided.
Superhuman Mental Powers: "Cosmic awareness," in this case, the ability to sense various energy signatures throughout space ability to sense various energy signatures throughout space
I take heralds over most hero's. Its not so much due to the "POWER COSMIC" but simply heralds have an unlimited powersupply and a huge powerset to simply find something to work on their enemy Air-Walker over Marvel.
Seriously most cosmics when they come to Earth get jobbered by cheese! Then they go out and stop multiversal threats with ease lol ........................Yeah yeah Captain Marvel goes down like a dress on prom night.
I'm pretty sure i've seen scans of CB beating the Air Walker robot.
Not exactly whooping his ass though, more like using Air Walker's own power to win the fight.