Well, comics that have historical significance, are in pristine condition, and have limited print runs tend to be the most valuable. Examples include 'Detective Comics #27' introducing Batman or 'Fantastic Four #1'.
The most valuable comics typically are those that are scarce, have significant historical or cultural significance, or feature beloved characters in rare storylines. Comics like Action Comics #1 (first appearance of Superman) or Amazing Fantasy #15 (first appearance of Spider-Man) are often at the top of the list.
Superman comics that have historical significance, such as those that introduced major characters or marked important milestones in the Superman universe, are usually worth money. Also, comics with unique art or signed by key creators can increase their value.
Some of the early editions and limited print runs of Archie Comics can be quite valuable. For example, rare first issues or special anniversary editions might fetch a high price.
It's hard to predict exactly, but comics with unique storylines and popular characters tend to have potential. Also, limited editions or those by renowned authors could be valuable.
Some of the older and rare Wolverine comics, like the first appearances or limited editions, can be worth a lot. Also, those with significant storylines or special covers tend to have higher value.
DC's 'Batman: The Dark Knight Returns' is extremely valuable. It's a masterpiece that influenced the entire superhero genre. Also, limited editions and first prints of popular series tend to hold high value due to their rarity.
Some of the early editions of Spawn comics can be quite valuable, especially those with limited print runs or significant storylines.
Certain variant covers or signed copies of Fantastic Four comics can be valuable. Issues that introduce important characters or have significant plot developments often command higher prices in the collector's market.
Comics that are rare, have significant storylines, or feature the first appearance of popular characters tend to be valuable. For example, the first appearance of Superman in Action Comics #1 is extremely valuable because of its rarity and the importance of the character in the comic book world.
Some of the valuable Star Wars comics include those featuring rare storylines or limited editions. For instance, early issues or special crossover events tend to hold higher value.