My list
Tier 1
Amazing Fantasy 15 1st app Spider-Man
Incredible Hulk 1 1st app Hulk
Amazing Spider-man 1 2nd app Spider-Man
Fantastic Four 1 1st app Fantastic Four
Journey Into Mystery 083 1st app Thor
X-Men 1 1st app Cyclops, Marvel Girl, Beast, Ice Man and Professor X
Tales of Suspense 39 1st app Iron Man (Mark 1)
Tales to Astonish 27 1st app Ant-Man
Avengers 1 1st app Avengers
Tier 2
Fantastic Four 5 1st app Dr. Doom
Strange Tales 110 1st app Dr. Strange
Daredevil 1 1st app Daredevil
Avengers 4 Return of Captain America
Journey Into Mystery 085 1st app Loki