My list gets very different depending on the amount of prep time involved. But in terms of total potential:
#1 - The Doctor (Doctor Who)
#2 - The Doctor (Authority)
#3 - Alan Scott (pre-FP)
#4 - Thor
#5 - Adam Warlock
#6 - Loki
#7 - He-Man
#8 - Death's Head II
#9 - The Tick
#10 - Spider-Man
Kingpin (lowest), Havok (just above Tick), EU Luke Skywalker (above DHII) and 1-2 others just missed the cut of my top 10 favorites.
Trans. cap? Guess the Doctor (Who) is out. 😊
He's a weird character. By forum stips., he might actually be last in power on my list. But give him basic opponent knowledge and any significant prep, and it's not a stretch to say I'd favor him over some abstracts.
Loki drops out if it's heroes only, too.
If its my fave heroes innorder of power as Digi thinks
Dr Fate
Obdidian
Alan Scot / Hellstrom
Dark Nebula
Thor
Arion
Captain Comet
Aquman
Comet (mlj)
Most of the rest of my faves are street level like Daredevil, Iron Fist, Question, marvel New Universe Justice, and others like black knight, Devil Slayer, Dr Occult who are all in my fav list above Aquaman and comet.