I'd say my biggest stumbling blocks with my wanting to do a perfect "Joseph Campbell meets TVtropes" Amalgam universe are the following:
Hulk: He's more of a universal monster than a superhero and yet there he is in the Avengers. My best tries are:
+ Swamp Thing = Swamp Hulk. Both the lead green monsters in their universes. Both origins involve scientist doing experiments. Both love interest are relatives of their enemies. Pros: I like the idea od combining John Constantine and Mr. Fix-it. Cons: I hate the idea of Anton Arcane being smooshed with "Thunderbolt" Ross.
+ The Atom = The Quark I just like this one. The idea of getting stronger and smaller at the same time is funny. Ray Palmer seems to have a lot of guilt too. Pros: The 'Sword of the Atom" stuff can tie to the 'Planet Hulk' stuff, and Amadeus Cho and Ryan Choi make good parallels. Cons: What to do with She-Hulk, Doc Samson, etc.
+ Captain Atom = Nuke. Probably the best. Both have experiments with bombs in their origins. Military enemies/allies, the lead one of whom is involved with the hero's love interest and becomes a super-villain (Red Hulk/The General). Both have evil future versions of themselves (Monarch/Maestro). Both are tied to the 'explosion that kills heroes' in different stories (Capt. Atom in 'Kingdom Come' and Hulk in 'The Last Avengers Story'). Cons: I consider Captain Atom's role in the JL his biggest part of his most essential role in the DCU, where as Hulk's role in the Avengers (in comics) is actually one of his least important. And again, what do you do with Hulk's multiple spin off characters?
+ Shazam = Captain Monster AKA Gammazam!. Pros: It's fun. Both characters physically transform into their alter-egos. I love the idea of She-Hulk combining with Mary Marvel for some reason. I like the idea of combining the US Army with the crocodile men for a little 'lizard people are ruling the earth' conspiracy action. I like Beautia Sivana being smooshed with Betty Ross-Banner. I like teh Thing/Hulk rivalry crossing over with the Superman + FF = Fantastic Family smoosh. Cons: I can really get used to the Sivania/Thunderbolt smoosh (despite the Thaddeus on Thaddeus action), also what do you do with Hulk's darker ideas (Mr. Fix-it, Maestro) and Shazam's goofier ones (Mr. Tawny, Uncle Dudley, etc.)|
+ Batman = Gargoyle. See above post.
Anyway, I'll do another problem area another day. I should really do some work right now.