I remember the first run of Hellblazer (the Jamie Delano stuff I think?) as being really good. The proviso being that I read it when it was initially published, so I was about 15 at the time. But it has a noir-ish dead end vibe that I liked a lot. I haven't revisited it, but in my mind at least, it's aged better than, say, Gaiman's Sandman.
Are you looking at classic Jonah Hex? Or is there some newer iteration of it?
I've just been re-reading my goofy Keith Giffen era Justice League from the late 80s. It made me realize that the 80s were a lot closer, culturally-speaking to the 50s/60s than they are to today. I mean, they were still publishing all those teeny ads for mail-order X-Ray specs, Sea Monkeys, and the Charles Atlas method.