Well, first things first, you have to look at the original Vertigo Hellblazer title, because everything since he ot folded into the main continuity has ranged from rubbish to mediocre. Apart from that, since the book is 300 issues, I've not yet finished it, so I'll go with some of the most widely accepted "best stories", and some faves. For starters:
*Issues 1-9 (Original Sins): No sprawling arcs here, mostly just a collection of one-and-done stories. Most have been adapted in the tv show, so you'll probably recognize them and be able to be eased into the property easier.
*Issue 27 (Hold Me): It's a one-off by Gaiman, and it's not there to shock you, but move you.
*Issues 41-46 (Dangerous Habits): It was the basis for the film, lung-cancer and all, plus it's written by Ennis. Another "familiar" story to get the hang of it.
*Issues 78-83 (Rake at the Gates of Hell): Ennis' final story. You might have to do some digging on characters like Gabriel & Chas first, but it's still worth it.
*Issues 134-139 (Haunted): Come on, it's Warren Ellis, of course it's good.
Well, I hope these are enough for a start. Happy reading!
