I fell in love with Howard Chaykin's creation, Dominic Fortune, from the moment I first encountered him, as an old man, in Marvel Team-Up. I eventually was able to acquire Marvel Preview (magazine) #20, which reprinted the stories from the hard (and pricey) to obtain Marvel Preview #2 and Marvel Super-Action #1. I also got my hands on Marvel Premiere #56 and the issues of Hulk Magazine, with Dominic Fortune back-up stories, in color.
The character was a lot of fun, set in the same pulpy adventure world that Indiana Jones inhabits, and such heroes as the Shadow, the Spider and Doc Savage (as well as Chaykin's previous The Scorpion, at Atlas/Seaboard). He's a mercenary adventurer who lives on a gambling boat, outside the three-mile limit, near the California coast. He takes on missions of all kinds, running up against Japanese agents in Hollywood and monsters and killers in New York. Along the way, you find out that he is actually a Brooklyn Jewish kid, named Davey Fortunoff. It was a great series of stories, with Chaykin's spectacular art and some sharp, witty dialogue from Denny O'Neil. It would make for a tremendous movie series.
Fortune has been used rather well, in recent years, especially as one of those bridging era heroes, who conenct the world of the Timely comics to the later Marvel ones, such as involvement in the super-soldier project, the Avengers 1959, and similar tales. He would have made a fine addition to Agent Carter. Chaykin's Max mini-series was a bit darker than the early stuff; but it still had that same sense of snarky adventurer, though with higher doses of sex.
Let's hear it for this this modern take on a classic adventurer: